Effect of the layer orientation on mechanics and energy evolution characteristics of shales under uniaxial loading
The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failu...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Hou, Peng [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016transfer abstract |
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| Umfang: |
6 |
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| Übergeordnetes Werk: |
Enthalten in: Special section from the International Conference on Evaluation and Assessment in Software Engineering, 2013 - Travassos, Guilherme Horta ELSEVIER, 2015, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:26 ; year:2016 ; number:5 ; pages:857-862 ; extent:6 |
| Links: |
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| DOI / URN: |
10.1016/j.ijmst.2016.05.041 |
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ELV029721598 |
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| 245 | 1 | 0 | |a Effect of the layer orientation on mechanics and energy evolution characteristics of shales under uniaxial loading |
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| 520 | |a The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failure mechanisms of the specimens with layers in 0° orientation showed splitting failure along weak bedding, while the specimens with layers in 90° orientation were failed by shearing sliding. The values of compressive strength, elastic modulus and shear modulus of samples at 0° were higher than those of samples at 90° and there was little difference of Poisson’s ratio between samples at 0° and 90°. The analysis of the stress–strain energy and acoustic emission (AE) energy indicated that the growth rate of absorbed energy density and elastic energy density at 0° was significantly faster than that at 90°, hence their final values at 0° were relatively larger than the latter. Moreover, higher energy release was observed for specimens at 0°. The energy release and rapid growth of energy dissipation also appeared more early at 0°. The stress ratio 63% was a critical point of energy distribution at which differences started to arise between samples at 0° and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°. | ||
| 520 | |a The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failure mechanisms of the specimens with layers in 0° orientation showed splitting failure along weak bedding, while the specimens with layers in 90° orientation were failed by shearing sliding. The values of compressive strength, elastic modulus and shear modulus of samples at 0° were higher than those of samples at 90° and there was little difference of Poisson’s ratio between samples at 0° and 90°. The analysis of the stress–strain energy and acoustic emission (AE) energy indicated that the growth rate of absorbed energy density and elastic energy density at 0° was significantly faster than that at 90°, hence their final values at 0° were relatively larger than the latter. Moreover, higher energy release was observed for specimens at 0°. The energy release and rapid growth of energy dissipation also appeared more early at 0°. The stress ratio 63% was a critical point of energy distribution at which differences started to arise between samples at 0° and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°. | ||
| 650 | 7 | |a Failure mechanism |2 Elsevier | |
| 650 | 7 | |a Energy evolution |2 Elsevier | |
| 650 | 7 | |a Uniaxial compression |2 Elsevier | |
| 650 | 7 | |a Shale |2 Elsevier | |
| 650 | 7 | |a Layer orientation |2 Elsevier | |
| 650 | 7 | |a AE energy |2 Elsevier | |
| 700 | 1 | |a Gao, Feng |4 oth | |
| 700 | 1 | |a Yang, Yugui |4 oth | |
| 700 | 1 | |a Zhang, Xiangxiang |4 oth | |
| 700 | 1 | |a Zhang, Zhizhen |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Travassos, Guilherme Horta ELSEVIER |t Special section from the International Conference on Evaluation and Assessment in Software Engineering, 2013 |d 2015 |g Amsterdam [u.a.] |w (DE-627)ELV018624243 |
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10.1016/j.ijmst.2016.05.041 doi GBVA2016011000024.pica (DE-627)ELV029721598 (ELSEVIER)S2095-2686(16)30052-0 DE-627 ger DE-627 rakwb eng 620 660 620 DE-600 660 DE-600 330 VZ 004 VZ 690 VZ 52.43 bkl 52.52 bkl 52.42 bkl 50.38 bkl Hou, Peng verfasserin aut Effect of the layer orientation on mechanics and energy evolution characteristics of shales under uniaxial loading 2016transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failure mechanisms of the specimens with layers in 0° orientation showed splitting failure along weak bedding, while the specimens with layers in 90° orientation were failed by shearing sliding. The values of compressive strength, elastic modulus and shear modulus of samples at 0° were higher than those of samples at 90° and there was little difference of Poisson’s ratio between samples at 0° and 90°. The analysis of the stress–strain energy and acoustic emission (AE) energy indicated that the growth rate of absorbed energy density and elastic energy density at 0° was significantly faster than that at 90°, hence their final values at 0° were relatively larger than the latter. Moreover, higher energy release was observed for specimens at 0°. The energy release and rapid growth of energy dissipation also appeared more early at 0°. The stress ratio 63% was a critical point of energy distribution at which differences started to arise between samples at 0° and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°. The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failure mechanisms of the specimens with layers in 0° orientation showed splitting failure along weak bedding, while the specimens with layers in 90° orientation were failed by shearing sliding. The values of compressive strength, elastic modulus and shear modulus of samples at 0° were higher than those of samples at 90° and there was little difference of Poisson’s ratio between samples at 0° and 90°. The analysis of the stress–strain energy and acoustic emission (AE) energy indicated that the growth rate of absorbed energy density and elastic energy density at 0° was significantly faster than that at 90°, hence their final values at 0° were relatively larger than the latter. Moreover, higher energy release was observed for specimens at 0°. The energy release and rapid growth of energy dissipation also appeared more early at 0°. The stress ratio 63% was a critical point of energy distribution at which differences started to arise between samples at 0° and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°. Failure mechanism Elsevier Energy evolution Elsevier Uniaxial compression Elsevier Shale Elsevier Layer orientation Elsevier AE energy Elsevier Gao, Feng oth Yang, Yugui oth Zhang, Xiangxiang oth Zhang, Zhizhen oth Enthalten in Elsevier Travassos, Guilherme Horta ELSEVIER Special section from the International Conference on Evaluation and Assessment in Software Engineering, 2013 2015 Amsterdam [u.a.] (DE-627)ELV018624243 volume:26 year:2016 number:5 pages:857-862 extent:6 https://doi.org/10.1016/j.ijmst.2016.05.041 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 52.43 Kältetechnik VZ 52.52 Thermische Energieerzeugung Wärmetechnik VZ 52.42 Heizungstechnik Lüftungstechnik Klimatechnik VZ 50.38 Technische Thermodynamik VZ AR 26 2016 5 857-862 6 045F 620 |
| spelling |
10.1016/j.ijmst.2016.05.041 doi GBVA2016011000024.pica (DE-627)ELV029721598 (ELSEVIER)S2095-2686(16)30052-0 DE-627 ger DE-627 rakwb eng 620 660 620 DE-600 660 DE-600 330 VZ 004 VZ 690 VZ 52.43 bkl 52.52 bkl 52.42 bkl 50.38 bkl Hou, Peng verfasserin aut Effect of the layer orientation on mechanics and energy evolution characteristics of shales under uniaxial loading 2016transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failure mechanisms of the specimens with layers in 0° orientation showed splitting failure along weak bedding, while the specimens with layers in 90° orientation were failed by shearing sliding. The values of compressive strength, elastic modulus and shear modulus of samples at 0° were higher than those of samples at 90° and there was little difference of Poisson’s ratio between samples at 0° and 90°. The analysis of the stress–strain energy and acoustic emission (AE) energy indicated that the growth rate of absorbed energy density and elastic energy density at 0° was significantly faster than that at 90°, hence their final values at 0° were relatively larger than the latter. Moreover, higher energy release was observed for specimens at 0°. The energy release and rapid growth of energy dissipation also appeared more early at 0°. The stress ratio 63% was a critical point of energy distribution at which differences started to arise between samples at 0° and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°. The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failure mechanisms of the specimens with layers in 0° orientation showed splitting failure along weak bedding, while the specimens with layers in 90° orientation were failed by shearing sliding. The values of compressive strength, elastic modulus and shear modulus of samples at 0° were higher than those of samples at 90° and there was little difference of Poisson’s ratio between samples at 0° and 90°. The analysis of the stress–strain energy and acoustic emission (AE) energy indicated that the growth rate of absorbed energy density and elastic energy density at 0° was significantly faster than that at 90°, hence their final values at 0° were relatively larger than the latter. Moreover, higher energy release was observed for specimens at 0°. The energy release and rapid growth of energy dissipation also appeared more early at 0°. The stress ratio 63% was a critical point of energy distribution at which differences started to arise between samples at 0° and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°. Failure mechanism Elsevier Energy evolution Elsevier Uniaxial compression Elsevier Shale Elsevier Layer orientation Elsevier AE energy Elsevier Gao, Feng oth Yang, Yugui oth Zhang, Xiangxiang oth Zhang, Zhizhen oth Enthalten in Elsevier Travassos, Guilherme Horta ELSEVIER Special section from the International Conference on Evaluation and Assessment in Software Engineering, 2013 2015 Amsterdam [u.a.] (DE-627)ELV018624243 volume:26 year:2016 number:5 pages:857-862 extent:6 https://doi.org/10.1016/j.ijmst.2016.05.041 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 52.43 Kältetechnik VZ 52.52 Thermische Energieerzeugung Wärmetechnik VZ 52.42 Heizungstechnik Lüftungstechnik Klimatechnik VZ 50.38 Technische Thermodynamik VZ AR 26 2016 5 857-862 6 045F 620 |
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10.1016/j.ijmst.2016.05.041 doi GBVA2016011000024.pica (DE-627)ELV029721598 (ELSEVIER)S2095-2686(16)30052-0 DE-627 ger DE-627 rakwb eng 620 660 620 DE-600 660 DE-600 330 VZ 004 VZ 690 VZ 52.43 bkl 52.52 bkl 52.42 bkl 50.38 bkl Hou, Peng verfasserin aut Effect of the layer orientation on mechanics and energy evolution characteristics of shales under uniaxial loading 2016transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failure mechanisms of the specimens with layers in 0° orientation showed splitting failure along weak bedding, while the specimens with layers in 90° orientation were failed by shearing sliding. The values of compressive strength, elastic modulus and shear modulus of samples at 0° were higher than those of samples at 90° and there was little difference of Poisson’s ratio between samples at 0° and 90°. The analysis of the stress–strain energy and acoustic emission (AE) energy indicated that the growth rate of absorbed energy density and elastic energy density at 0° was significantly faster than that at 90°, hence their final values at 0° were relatively larger than the latter. Moreover, higher energy release was observed for specimens at 0°. The energy release and rapid growth of energy dissipation also appeared more early at 0°. The stress ratio 63% was a critical point of energy distribution at which differences started to arise between samples at 0° and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°. The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failure mechanisms of the specimens with layers in 0° orientation showed splitting failure along weak bedding, while the specimens with layers in 90° orientation were failed by shearing sliding. The values of compressive strength, elastic modulus and shear modulus of samples at 0° were higher than those of samples at 90° and there was little difference of Poisson’s ratio between samples at 0° and 90°. The analysis of the stress–strain energy and acoustic emission (AE) energy indicated that the growth rate of absorbed energy density and elastic energy density at 0° was significantly faster than that at 90°, hence their final values at 0° were relatively larger than the latter. Moreover, higher energy release was observed for specimens at 0°. The energy release and rapid growth of energy dissipation also appeared more early at 0°. The stress ratio 63% was a critical point of energy distribution at which differences started to arise between samples at 0° and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°. Failure mechanism Elsevier Energy evolution Elsevier Uniaxial compression Elsevier Shale Elsevier Layer orientation Elsevier AE energy Elsevier Gao, Feng oth Yang, Yugui oth Zhang, Xiangxiang oth Zhang, Zhizhen oth Enthalten in Elsevier Travassos, Guilherme Horta ELSEVIER Special section from the International Conference on Evaluation and Assessment in Software Engineering, 2013 2015 Amsterdam [u.a.] (DE-627)ELV018624243 volume:26 year:2016 number:5 pages:857-862 extent:6 https://doi.org/10.1016/j.ijmst.2016.05.041 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 52.43 Kältetechnik VZ 52.52 Thermische Energieerzeugung Wärmetechnik VZ 52.42 Heizungstechnik Lüftungstechnik Klimatechnik VZ 50.38 Technische Thermodynamik VZ AR 26 2016 5 857-862 6 045F 620 |
| allfieldsGer |
10.1016/j.ijmst.2016.05.041 doi GBVA2016011000024.pica (DE-627)ELV029721598 (ELSEVIER)S2095-2686(16)30052-0 DE-627 ger DE-627 rakwb eng 620 660 620 DE-600 660 DE-600 330 VZ 004 VZ 690 VZ 52.43 bkl 52.52 bkl 52.42 bkl 50.38 bkl Hou, Peng verfasserin aut Effect of the layer orientation on mechanics and energy evolution characteristics of shales under uniaxial loading 2016transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failure mechanisms of the specimens with layers in 0° orientation showed splitting failure along weak bedding, while the specimens with layers in 90° orientation were failed by shearing sliding. The values of compressive strength, elastic modulus and shear modulus of samples at 0° were higher than those of samples at 90° and there was little difference of Poisson’s ratio between samples at 0° and 90°. The analysis of the stress–strain energy and acoustic emission (AE) energy indicated that the growth rate of absorbed energy density and elastic energy density at 0° was significantly faster than that at 90°, hence their final values at 0° were relatively larger than the latter. Moreover, higher energy release was observed for specimens at 0°. The energy release and rapid growth of energy dissipation also appeared more early at 0°. The stress ratio 63% was a critical point of energy distribution at which differences started to arise between samples at 0° and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°. The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failure mechanisms of the specimens with layers in 0° orientation showed splitting failure along weak bedding, while the specimens with layers in 90° orientation were failed by shearing sliding. The values of compressive strength, elastic modulus and shear modulus of samples at 0° were higher than those of samples at 90° and there was little difference of Poisson’s ratio between samples at 0° and 90°. The analysis of the stress–strain energy and acoustic emission (AE) energy indicated that the growth rate of absorbed energy density and elastic energy density at 0° was significantly faster than that at 90°, hence their final values at 0° were relatively larger than the latter. Moreover, higher energy release was observed for specimens at 0°. The energy release and rapid growth of energy dissipation also appeared more early at 0°. The stress ratio 63% was a critical point of energy distribution at which differences started to arise between samples at 0° and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°. Failure mechanism Elsevier Energy evolution Elsevier Uniaxial compression Elsevier Shale Elsevier Layer orientation Elsevier AE energy Elsevier Gao, Feng oth Yang, Yugui oth Zhang, Xiangxiang oth Zhang, Zhizhen oth Enthalten in Elsevier Travassos, Guilherme Horta ELSEVIER Special section from the International Conference on Evaluation and Assessment in Software Engineering, 2013 2015 Amsterdam [u.a.] (DE-627)ELV018624243 volume:26 year:2016 number:5 pages:857-862 extent:6 https://doi.org/10.1016/j.ijmst.2016.05.041 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 52.43 Kältetechnik VZ 52.52 Thermische Energieerzeugung Wärmetechnik VZ 52.42 Heizungstechnik Lüftungstechnik Klimatechnik VZ 50.38 Technische Thermodynamik VZ AR 26 2016 5 857-862 6 045F 620 |
| allfieldsSound |
10.1016/j.ijmst.2016.05.041 doi GBVA2016011000024.pica (DE-627)ELV029721598 (ELSEVIER)S2095-2686(16)30052-0 DE-627 ger DE-627 rakwb eng 620 660 620 DE-600 660 DE-600 330 VZ 004 VZ 690 VZ 52.43 bkl 52.52 bkl 52.42 bkl 50.38 bkl Hou, Peng verfasserin aut Effect of the layer orientation on mechanics and energy evolution characteristics of shales under uniaxial loading 2016transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failure mechanisms of the specimens with layers in 0° orientation showed splitting failure along weak bedding, while the specimens with layers in 90° orientation were failed by shearing sliding. The values of compressive strength, elastic modulus and shear modulus of samples at 0° were higher than those of samples at 90° and there was little difference of Poisson’s ratio between samples at 0° and 90°. The analysis of the stress–strain energy and acoustic emission (AE) energy indicated that the growth rate of absorbed energy density and elastic energy density at 0° was significantly faster than that at 90°, hence their final values at 0° were relatively larger than the latter. Moreover, higher energy release was observed for specimens at 0°. The energy release and rapid growth of energy dissipation also appeared more early at 0°. The stress ratio 63% was a critical point of energy distribution at which differences started to arise between samples at 0° and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°. The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failure mechanisms of the specimens with layers in 0° orientation showed splitting failure along weak bedding, while the specimens with layers in 90° orientation were failed by shearing sliding. The values of compressive strength, elastic modulus and shear modulus of samples at 0° were higher than those of samples at 90° and there was little difference of Poisson’s ratio between samples at 0° and 90°. The analysis of the stress–strain energy and acoustic emission (AE) energy indicated that the growth rate of absorbed energy density and elastic energy density at 0° was significantly faster than that at 90°, hence their final values at 0° were relatively larger than the latter. Moreover, higher energy release was observed for specimens at 0°. The energy release and rapid growth of energy dissipation also appeared more early at 0°. The stress ratio 63% was a critical point of energy distribution at which differences started to arise between samples at 0° and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°. Failure mechanism Elsevier Energy evolution Elsevier Uniaxial compression Elsevier Shale Elsevier Layer orientation Elsevier AE energy Elsevier Gao, Feng oth Yang, Yugui oth Zhang, Xiangxiang oth Zhang, Zhizhen oth Enthalten in Elsevier Travassos, Guilherme Horta ELSEVIER Special section from the International Conference on Evaluation and Assessment in Software Engineering, 2013 2015 Amsterdam [u.a.] (DE-627)ELV018624243 volume:26 year:2016 number:5 pages:857-862 extent:6 https://doi.org/10.1016/j.ijmst.2016.05.041 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 52.43 Kältetechnik VZ 52.52 Thermische Energieerzeugung Wärmetechnik VZ 52.42 Heizungstechnik Lüftungstechnik Klimatechnik VZ 50.38 Technische Thermodynamik VZ AR 26 2016 5 857-862 6 045F 620 |
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effect of the layer orientation on mechanics and energy evolution characteristics of shales under uniaxial loading |
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Effect of the layer orientation on mechanics and energy evolution characteristics of shales under uniaxial loading |
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The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failure mechanisms of the specimens with layers in 0° orientation showed splitting failure along weak bedding, while the specimens with layers in 90° orientation were failed by shearing sliding. The values of compressive strength, elastic modulus and shear modulus of samples at 0° were higher than those of samples at 90° and there was little difference of Poisson’s ratio between samples at 0° and 90°. The analysis of the stress–strain energy and acoustic emission (AE) energy indicated that the growth rate of absorbed energy density and elastic energy density at 0° was significantly faster than that at 90°, hence their final values at 0° were relatively larger than the latter. Moreover, higher energy release was observed for specimens at 0°. The energy release and rapid growth of energy dissipation also appeared more early at 0°. The stress ratio 63% was a critical point of energy distribution at which differences started to arise between samples at 0° and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°. |
| abstractGer |
The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failure mechanisms of the specimens with layers in 0° orientation showed splitting failure along weak bedding, while the specimens with layers in 90° orientation were failed by shearing sliding. The values of compressive strength, elastic modulus and shear modulus of samples at 0° were higher than those of samples at 90° and there was little difference of Poisson’s ratio between samples at 0° and 90°. The analysis of the stress–strain energy and acoustic emission (AE) energy indicated that the growth rate of absorbed energy density and elastic energy density at 0° was significantly faster than that at 90°, hence their final values at 0° were relatively larger than the latter. Moreover, higher energy release was observed for specimens at 0°. The energy release and rapid growth of energy dissipation also appeared more early at 0°. The stress ratio 63% was a critical point of energy distribution at which differences started to arise between samples at 0° and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°. |
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The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failure mechanisms of the specimens with layers in 0° orientation showed splitting failure along weak bedding, while the specimens with layers in 90° orientation were failed by shearing sliding. The values of compressive strength, elastic modulus and shear modulus of samples at 0° were higher than those of samples at 90° and there was little difference of Poisson’s ratio between samples at 0° and 90°. The analysis of the stress–strain energy and acoustic emission (AE) energy indicated that the growth rate of absorbed energy density and elastic energy density at 0° was significantly faster than that at 90°, hence their final values at 0° were relatively larger than the latter. Moreover, higher energy release was observed for specimens at 0°. The energy release and rapid growth of energy dissipation also appeared more early at 0°. The stress ratio 63% was a critical point of energy distribution at which differences started to arise between samples at 0° and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°. |
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The stress ratio 63% was a critical point of energy distribution at which differences started to arise between samples at 0° and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failure mechanisms of the specimens with layers in 0° orientation showed splitting failure along weak bedding, while the specimens with layers in 90° orientation were failed by shearing sliding. The values of compressive strength, elastic modulus and shear modulus of samples at 0° were higher than those of samples at 90° and there was little difference of Poisson’s ratio between samples at 0° and 90°. The analysis of the stress–strain energy and acoustic emission (AE) energy indicated that the growth rate of absorbed energy density and elastic energy density at 0° was significantly faster than that at 90°, hence their final values at 0° were relatively larger than the latter. Moreover, higher energy release was observed for specimens at 0°. The energy release and rapid growth of energy dissipation also appeared more early at 0°. The stress ratio 63% was a critical point of energy distribution at which differences started to arise between samples at 0° and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°.</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Failure mechanism</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Energy evolution</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Uniaxial compression</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Shale</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Layer orientation</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">AE energy</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gao, Feng</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Yang, Yugui</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zhang, Xiangxiang</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zhang, Zhizhen</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="n">Elsevier</subfield><subfield code="a">Travassos, Guilherme Horta ELSEVIER</subfield><subfield code="t">Special section from the International Conference on Evaluation and Assessment in Software Engineering, 2013</subfield><subfield code="d">2015</subfield><subfield code="g">Amsterdam [u.a.]</subfield><subfield code="w">(DE-627)ELV018624243</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:26</subfield><subfield code="g">year:2016</subfield><subfield code="g">number:5</subfield><subfield code="g">pages:857-862</subfield><subfield code="g">extent:6</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1016/j.ijmst.2016.05.041</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">52.43</subfield><subfield code="j">Kältetechnik</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">52.52</subfield><subfield code="j">Thermische Energieerzeugung</subfield><subfield code="j">Wärmetechnik</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">52.42</subfield><subfield code="j">Heizungstechnik</subfield><subfield code="j">Lüftungstechnik</subfield><subfield code="j">Klimatechnik</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">50.38</subfield><subfield code="j">Technische Thermodynamik</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">26</subfield><subfield code="j">2016</subfield><subfield code="e">5</subfield><subfield code="h">857-862</subfield><subfield code="g">6</subfield></datafield><datafield tag="953" ind1=" " ind2=" "><subfield code="2">045F</subfield><subfield code="a">620</subfield></datafield></record></collection>
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