Experimental study of the dynamic characteristics of sandstone with preexisting creep damage
Abstract Damage generated from creep deformation is pervasive in rock, which is assumed to influence the mechanical performance of rock. However, the influence of creep damage on the dynamic characteristics of rock has not been well understood. Here, a rock creep-impact test apparatus is used to inv...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Li, Shaohua [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021 |
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| Schlagwörter: |
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| Anmerkung: |
© The Author(s), under exclusive licence to Springer Nature B.V. 2021 |
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| Übergeordnetes Werk: |
Enthalten in: Mechanics of time-dependent materials - Dordrecht [u.a.] : Springer Science + Business Media B.V, 1997, 26(2021), 4 vom: 26. Nov., Seite 955-973 |
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| Übergeordnetes Werk: |
volume:26 ; year:2021 ; number:4 ; day:26 ; month:11 ; pages:955-973 |
| Links: |
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| DOI / URN: |
10.1007/s11043-021-09522-z |
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| Katalog-ID: |
SPR048772720 |
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| 520 | |a Abstract Damage generated from creep deformation is pervasive in rock, which is assumed to influence the mechanical performance of rock. However, the influence of creep damage on the dynamic characteristics of rock has not been well understood. Here, a rock creep-impact test apparatus is used to investigate the preexisting creep damage on the dynamic performance of sandstone. The results demonstrate that a higher creep stress results in more initial microcracks in sandstone, leading to a higher damage-cumulation rate. The impact number is more sensitive to the creep-stress level than the creep duration. During the dynamic impact, a higher creep stress leads to a larger peak axial strain and a larger residual axial strain, whereas a sandstone sample tends to dilate with increasing constant stress and load duration. Moreover, the larger the constant stress level and creep duration, the smaller the proportion of the second stage of damage of sandstone under impact loading. These results are helpful to the understanding of the damage and failure process of deep rock structure exposed to dynamic loading. | ||
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| 700 | 1 | |a Wang, Tao |4 aut | |
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| 700 | 1 | |a Yao, Xiaohu |4 aut | |
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10.1007/s11043-021-09522-z doi (DE-627)SPR048772720 (SPR)s11043-021-09522-z-e DE-627 ger DE-627 rakwb eng Li, Shaohua verfasserin aut Experimental study of the dynamic characteristics of sandstone with preexisting creep damage 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature B.V. 2021 Abstract Damage generated from creep deformation is pervasive in rock, which is assumed to influence the mechanical performance of rock. However, the influence of creep damage on the dynamic characteristics of rock has not been well understood. Here, a rock creep-impact test apparatus is used to investigate the preexisting creep damage on the dynamic performance of sandstone. The results demonstrate that a higher creep stress results in more initial microcracks in sandstone, leading to a higher damage-cumulation rate. The impact number is more sensitive to the creep-stress level than the creep duration. During the dynamic impact, a higher creep stress leads to a larger peak axial strain and a larger residual axial strain, whereas a sandstone sample tends to dilate with increasing constant stress and load duration. Moreover, the larger the constant stress level and creep duration, the smaller the proportion of the second stage of damage of sandstone under impact loading. These results are helpful to the understanding of the damage and failure process of deep rock structure exposed to dynamic loading. Creep-impact load (dpeaa)DE-He213 Creep damage (dpeaa)DE-He213 Dynamic deformation (dpeaa)DE-He213 Microcracks (dpeaa)DE-He213 P-wave velocity (dpeaa)DE-He213 Wang, Tao aut Zhang, Fei aut Yao, Xiaohu aut Enthalten in Mechanics of time-dependent materials Dordrecht [u.a.] : Springer Science + Business Media B.V, 1997 26(2021), 4 vom: 26. Nov., Seite 955-973 (DE-627)311009964 (DE-600)2003935-9 1573-2738 nnns volume:26 year:2021 number:4 day:26 month:11 pages:955-973 https://dx.doi.org/10.1007/s11043-021-09522-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 26 2021 4 26 11 955-973 |
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10.1007/s11043-021-09522-z doi (DE-627)SPR048772720 (SPR)s11043-021-09522-z-e DE-627 ger DE-627 rakwb eng Li, Shaohua verfasserin aut Experimental study of the dynamic characteristics of sandstone with preexisting creep damage 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature B.V. 2021 Abstract Damage generated from creep deformation is pervasive in rock, which is assumed to influence the mechanical performance of rock. However, the influence of creep damage on the dynamic characteristics of rock has not been well understood. Here, a rock creep-impact test apparatus is used to investigate the preexisting creep damage on the dynamic performance of sandstone. The results demonstrate that a higher creep stress results in more initial microcracks in sandstone, leading to a higher damage-cumulation rate. The impact number is more sensitive to the creep-stress level than the creep duration. During the dynamic impact, a higher creep stress leads to a larger peak axial strain and a larger residual axial strain, whereas a sandstone sample tends to dilate with increasing constant stress and load duration. Moreover, the larger the constant stress level and creep duration, the smaller the proportion of the second stage of damage of sandstone under impact loading. These results are helpful to the understanding of the damage and failure process of deep rock structure exposed to dynamic loading. Creep-impact load (dpeaa)DE-He213 Creep damage (dpeaa)DE-He213 Dynamic deformation (dpeaa)DE-He213 Microcracks (dpeaa)DE-He213 P-wave velocity (dpeaa)DE-He213 Wang, Tao aut Zhang, Fei aut Yao, Xiaohu aut Enthalten in Mechanics of time-dependent materials Dordrecht [u.a.] : Springer Science + Business Media B.V, 1997 26(2021), 4 vom: 26. Nov., Seite 955-973 (DE-627)311009964 (DE-600)2003935-9 1573-2738 nnns volume:26 year:2021 number:4 day:26 month:11 pages:955-973 https://dx.doi.org/10.1007/s11043-021-09522-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 26 2021 4 26 11 955-973 |
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10.1007/s11043-021-09522-z doi (DE-627)SPR048772720 (SPR)s11043-021-09522-z-e DE-627 ger DE-627 rakwb eng Li, Shaohua verfasserin aut Experimental study of the dynamic characteristics of sandstone with preexisting creep damage 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature B.V. 2021 Abstract Damage generated from creep deformation is pervasive in rock, which is assumed to influence the mechanical performance of rock. However, the influence of creep damage on the dynamic characteristics of rock has not been well understood. Here, a rock creep-impact test apparatus is used to investigate the preexisting creep damage on the dynamic performance of sandstone. The results demonstrate that a higher creep stress results in more initial microcracks in sandstone, leading to a higher damage-cumulation rate. The impact number is more sensitive to the creep-stress level than the creep duration. During the dynamic impact, a higher creep stress leads to a larger peak axial strain and a larger residual axial strain, whereas a sandstone sample tends to dilate with increasing constant stress and load duration. Moreover, the larger the constant stress level and creep duration, the smaller the proportion of the second stage of damage of sandstone under impact loading. These results are helpful to the understanding of the damage and failure process of deep rock structure exposed to dynamic loading. Creep-impact load (dpeaa)DE-He213 Creep damage (dpeaa)DE-He213 Dynamic deformation (dpeaa)DE-He213 Microcracks (dpeaa)DE-He213 P-wave velocity (dpeaa)DE-He213 Wang, Tao aut Zhang, Fei aut Yao, Xiaohu aut Enthalten in Mechanics of time-dependent materials Dordrecht [u.a.] : Springer Science + Business Media B.V, 1997 26(2021), 4 vom: 26. Nov., Seite 955-973 (DE-627)311009964 (DE-600)2003935-9 1573-2738 nnns volume:26 year:2021 number:4 day:26 month:11 pages:955-973 https://dx.doi.org/10.1007/s11043-021-09522-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 26 2021 4 26 11 955-973 |
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10.1007/s11043-021-09522-z doi (DE-627)SPR048772720 (SPR)s11043-021-09522-z-e DE-627 ger DE-627 rakwb eng Li, Shaohua verfasserin aut Experimental study of the dynamic characteristics of sandstone with preexisting creep damage 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature B.V. 2021 Abstract Damage generated from creep deformation is pervasive in rock, which is assumed to influence the mechanical performance of rock. However, the influence of creep damage on the dynamic characteristics of rock has not been well understood. Here, a rock creep-impact test apparatus is used to investigate the preexisting creep damage on the dynamic performance of sandstone. The results demonstrate that a higher creep stress results in more initial microcracks in sandstone, leading to a higher damage-cumulation rate. The impact number is more sensitive to the creep-stress level than the creep duration. During the dynamic impact, a higher creep stress leads to a larger peak axial strain and a larger residual axial strain, whereas a sandstone sample tends to dilate with increasing constant stress and load duration. Moreover, the larger the constant stress level and creep duration, the smaller the proportion of the second stage of damage of sandstone under impact loading. These results are helpful to the understanding of the damage and failure process of deep rock structure exposed to dynamic loading. Creep-impact load (dpeaa)DE-He213 Creep damage (dpeaa)DE-He213 Dynamic deformation (dpeaa)DE-He213 Microcracks (dpeaa)DE-He213 P-wave velocity (dpeaa)DE-He213 Wang, Tao aut Zhang, Fei aut Yao, Xiaohu aut Enthalten in Mechanics of time-dependent materials Dordrecht [u.a.] : Springer Science + Business Media B.V, 1997 26(2021), 4 vom: 26. Nov., Seite 955-973 (DE-627)311009964 (DE-600)2003935-9 1573-2738 nnns volume:26 year:2021 number:4 day:26 month:11 pages:955-973 https://dx.doi.org/10.1007/s11043-021-09522-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 26 2021 4 26 11 955-973 |
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10.1007/s11043-021-09522-z doi (DE-627)SPR048772720 (SPR)s11043-021-09522-z-e DE-627 ger DE-627 rakwb eng Li, Shaohua verfasserin aut Experimental study of the dynamic characteristics of sandstone with preexisting creep damage 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature B.V. 2021 Abstract Damage generated from creep deformation is pervasive in rock, which is assumed to influence the mechanical performance of rock. However, the influence of creep damage on the dynamic characteristics of rock has not been well understood. Here, a rock creep-impact test apparatus is used to investigate the preexisting creep damage on the dynamic performance of sandstone. The results demonstrate that a higher creep stress results in more initial microcracks in sandstone, leading to a higher damage-cumulation rate. The impact number is more sensitive to the creep-stress level than the creep duration. During the dynamic impact, a higher creep stress leads to a larger peak axial strain and a larger residual axial strain, whereas a sandstone sample tends to dilate with increasing constant stress and load duration. Moreover, the larger the constant stress level and creep duration, the smaller the proportion of the second stage of damage of sandstone under impact loading. These results are helpful to the understanding of the damage and failure process of deep rock structure exposed to dynamic loading. Creep-impact load (dpeaa)DE-He213 Creep damage (dpeaa)DE-He213 Dynamic deformation (dpeaa)DE-He213 Microcracks (dpeaa)DE-He213 P-wave velocity (dpeaa)DE-He213 Wang, Tao aut Zhang, Fei aut Yao, Xiaohu aut Enthalten in Mechanics of time-dependent materials Dordrecht [u.a.] : Springer Science + Business Media B.V, 1997 26(2021), 4 vom: 26. Nov., Seite 955-973 (DE-627)311009964 (DE-600)2003935-9 1573-2738 nnns volume:26 year:2021 number:4 day:26 month:11 pages:955-973 https://dx.doi.org/10.1007/s11043-021-09522-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 26 2021 4 26 11 955-973 |
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Li, Shaohua |
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Li, Shaohua misc Creep-impact load misc Creep damage misc Dynamic deformation misc Microcracks misc P-wave velocity Experimental study of the dynamic characteristics of sandstone with preexisting creep damage |
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Experimental study of the dynamic characteristics of sandstone with preexisting creep damage Creep-impact load (dpeaa)DE-He213 Creep damage (dpeaa)DE-He213 Dynamic deformation (dpeaa)DE-He213 Microcracks (dpeaa)DE-He213 P-wave velocity (dpeaa)DE-He213 |
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Experimental study of the dynamic characteristics of sandstone with preexisting creep damage |
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experimental study of the dynamic characteristics of sandstone with preexisting creep damage |
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Experimental study of the dynamic characteristics of sandstone with preexisting creep damage |
| abstract |
Abstract Damage generated from creep deformation is pervasive in rock, which is assumed to influence the mechanical performance of rock. However, the influence of creep damage on the dynamic characteristics of rock has not been well understood. Here, a rock creep-impact test apparatus is used to investigate the preexisting creep damage on the dynamic performance of sandstone. The results demonstrate that a higher creep stress results in more initial microcracks in sandstone, leading to a higher damage-cumulation rate. The impact number is more sensitive to the creep-stress level than the creep duration. During the dynamic impact, a higher creep stress leads to a larger peak axial strain and a larger residual axial strain, whereas a sandstone sample tends to dilate with increasing constant stress and load duration. Moreover, the larger the constant stress level and creep duration, the smaller the proportion of the second stage of damage of sandstone under impact loading. These results are helpful to the understanding of the damage and failure process of deep rock structure exposed to dynamic loading. © The Author(s), under exclusive licence to Springer Nature B.V. 2021 |
| abstractGer |
Abstract Damage generated from creep deformation is pervasive in rock, which is assumed to influence the mechanical performance of rock. However, the influence of creep damage on the dynamic characteristics of rock has not been well understood. Here, a rock creep-impact test apparatus is used to investigate the preexisting creep damage on the dynamic performance of sandstone. The results demonstrate that a higher creep stress results in more initial microcracks in sandstone, leading to a higher damage-cumulation rate. The impact number is more sensitive to the creep-stress level than the creep duration. During the dynamic impact, a higher creep stress leads to a larger peak axial strain and a larger residual axial strain, whereas a sandstone sample tends to dilate with increasing constant stress and load duration. Moreover, the larger the constant stress level and creep duration, the smaller the proportion of the second stage of damage of sandstone under impact loading. These results are helpful to the understanding of the damage and failure process of deep rock structure exposed to dynamic loading. © The Author(s), under exclusive licence to Springer Nature B.V. 2021 |
| abstract_unstemmed |
Abstract Damage generated from creep deformation is pervasive in rock, which is assumed to influence the mechanical performance of rock. However, the influence of creep damage on the dynamic characteristics of rock has not been well understood. Here, a rock creep-impact test apparatus is used to investigate the preexisting creep damage on the dynamic performance of sandstone. The results demonstrate that a higher creep stress results in more initial microcracks in sandstone, leading to a higher damage-cumulation rate. The impact number is more sensitive to the creep-stress level than the creep duration. During the dynamic impact, a higher creep stress leads to a larger peak axial strain and a larger residual axial strain, whereas a sandstone sample tends to dilate with increasing constant stress and load duration. Moreover, the larger the constant stress level and creep duration, the smaller the proportion of the second stage of damage of sandstone under impact loading. These results are helpful to the understanding of the damage and failure process of deep rock structure exposed to dynamic loading. © The Author(s), under exclusive licence to Springer Nature B.V. 2021 |
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Experimental study of the dynamic characteristics of sandstone with preexisting creep damage |
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https://dx.doi.org/10.1007/s11043-021-09522-z |
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Wang, Tao Zhang, Fei Yao, Xiaohu |
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10.1007/s11043-021-09522-z |
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