Study on the evolution law and quantitative characterization of micro-crack propagation in the compressive failure process of rocks

Quantitative characterization of the evolution law of micro-crack propagation in rocks is important for understanding the rock failure mechanism. This study aims to establish a theoretical method for quantitatively characterizing the evolution of micro-crack propagations during the compressive failu...
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Autor*in:	Li, Shengnan [verfasserIn] Huang, Zhonghua [verfasserIn] Huang, Kan [verfasserIn] Li, Yu [verfasserIn] Peng, Huihua [verfasserIn] Liang, Qiao [verfasserIn] Ma, Kai [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	Rock mechanics Constitutive model Crack propagation Mesomechanism Damage Nonlinear deformation

Übergeordnetes Werk:	Enthalten in: Engineering failure analysis - Oxford [u.a.] : Elsevier Science, 1994, 155
Übergeordnetes Werk:	volume:155

DOI / URN:	10.1016/j.engfailanal.2023.107743

Katalog-ID:	ELV065636473

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520			\|a Quantitative characterization of the evolution law of micro-crack propagation in rocks is important for understanding the rock failure mechanism. This study aims to establish a theoretical method for quantitatively characterizing the evolution of micro-crack propagations during the compressive failure of rocks. Mechanical properties and failure characteristics of carbonaceous mudstone were investigated by triaxial compression tests. In order to study the evolution law of crack propagation morphology and quantity, numerical simulations of micro-crack propagation in rocks during triaxial compression were performed using the particle flow code (PFC). Based on the phenomenological theory, we proposed to define the rock damage increment by crack propagation quantity. The evolution law of crack quantity was characterized using the Logistic growth model. Furthermore, an equation for the evolution of micro-crack propagation quantity during compressive failure was established, and the rationality of the equation was verified. The results show that micro-cracks initiate in weak areas of rocks and develop and converge around existing cracks, eventually leading to localized failure through propagation and connection. The number of micro-cracks grows in an “S-shaped” pattern, accelerating before the peak stress, reaching a maximum growth rate at the peak stress, and decelerating in the post-peak stage. As the confining pressure increases, the number of rock micro-cracks increases, the propagation morphology becomes more complex, and the failure localization weakens. The proposed equation accurately characterizes the evolution of micro-crack propagation quantity in the rock failure process. In addition, the calculation results are in good agreement with the numerical analysis results, verifying the rationality of the equation.
650		4	\|a Rock mechanics
650		4	\|a Constitutive model
650		4	\|a Crack propagation
650		4	\|a Mesomechanism
650		4	\|a Damage
650		4	\|a Nonlinear deformation
700	1		\|a Huang, Zhonghua \|e verfasserin \|4 aut
700	1		\|a Huang, Kan \|e verfasserin \|4 aut
700	1		\|a Li, Yu \|e verfasserin \|4 aut
700	1		\|a Peng, Huihua \|e verfasserin \|4 aut
700	1		\|a Liang, Qiao \|e verfasserin \|4 aut
700	1		\|a Ma, Kai \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t Engineering failure analysis \|d Oxford [u.a.] : Elsevier Science, 1994 \|g 155 \|h Online-Ressource \|w (DE-627)320608697 \|w (DE-600)2021082-6 \|w (DE-576)120883619 \|x 1350-6307 \|7 nnns
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allfields	10.1016/j.engfailanal.2023.107743 doi (DE-627)ELV065636473 (ELSEVIER)S1350-6307(23)00697-0 DE-627 ger DE-627 rda eng 600 VZ 51.32 bkl 50.16 bkl Li, Shengnan verfasserin aut Study on the evolution law and quantitative characterization of micro-crack propagation in the compressive failure process of rocks 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Quantitative characterization of the evolution law of micro-crack propagation in rocks is important for understanding the rock failure mechanism. This study aims to establish a theoretical method for quantitatively characterizing the evolution of micro-crack propagations during the compressive failure of rocks. Mechanical properties and failure characteristics of carbonaceous mudstone were investigated by triaxial compression tests. In order to study the evolution law of crack propagation morphology and quantity, numerical simulations of micro-crack propagation in rocks during triaxial compression were performed using the particle flow code (PFC). Based on the phenomenological theory, we proposed to define the rock damage increment by crack propagation quantity. The evolution law of crack quantity was characterized using the Logistic growth model. Furthermore, an equation for the evolution of micro-crack propagation quantity during compressive failure was established, and the rationality of the equation was verified. The results show that micro-cracks initiate in weak areas of rocks and develop and converge around existing cracks, eventually leading to localized failure through propagation and connection. The number of micro-cracks grows in an “S-shaped” pattern, accelerating before the peak stress, reaching a maximum growth rate at the peak stress, and decelerating in the post-peak stage. As the confining pressure increases, the number of rock micro-cracks increases, the propagation morphology becomes more complex, and the failure localization weakens. The proposed equation accurately characterizes the evolution of micro-crack propagation quantity in the rock failure process. In addition, the calculation results are in good agreement with the numerical analysis results, verifying the rationality of the equation. Rock mechanics Constitutive model Crack propagation Mesomechanism Damage Nonlinear deformation Huang, Zhonghua verfasserin aut Huang, Kan verfasserin aut Li, Yu verfasserin aut Peng, Huihua verfasserin aut Liang, Qiao verfasserin aut Ma, Kai verfasserin aut Enthalten in Engineering failure analysis Oxford [u.a.] : Elsevier Science, 1994 155 Online-Ressource (DE-627)320608697 (DE-600)2021082-6 (DE-576)120883619 1350-6307 nnns volume:155 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 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_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 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_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 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_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.32 Werkstoffmechanik VZ 50.16 Technische Zuverlässigkeit Instandhaltung VZ AR 155
spelling	10.1016/j.engfailanal.2023.107743 doi (DE-627)ELV065636473 (ELSEVIER)S1350-6307(23)00697-0 DE-627 ger DE-627 rda eng 600 VZ 51.32 bkl 50.16 bkl Li, Shengnan verfasserin aut Study on the evolution law and quantitative characterization of micro-crack propagation in the compressive failure process of rocks 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Quantitative characterization of the evolution law of micro-crack propagation in rocks is important for understanding the rock failure mechanism. This study aims to establish a theoretical method for quantitatively characterizing the evolution of micro-crack propagations during the compressive failure of rocks. Mechanical properties and failure characteristics of carbonaceous mudstone were investigated by triaxial compression tests. In order to study the evolution law of crack propagation morphology and quantity, numerical simulations of micro-crack propagation in rocks during triaxial compression were performed using the particle flow code (PFC). Based on the phenomenological theory, we proposed to define the rock damage increment by crack propagation quantity. The evolution law of crack quantity was characterized using the Logistic growth model. Furthermore, an equation for the evolution of micro-crack propagation quantity during compressive failure was established, and the rationality of the equation was verified. The results show that micro-cracks initiate in weak areas of rocks and develop and converge around existing cracks, eventually leading to localized failure through propagation and connection. The number of micro-cracks grows in an “S-shaped” pattern, accelerating before the peak stress, reaching a maximum growth rate at the peak stress, and decelerating in the post-peak stage. As the confining pressure increases, the number of rock micro-cracks increases, the propagation morphology becomes more complex, and the failure localization weakens. The proposed equation accurately characterizes the evolution of micro-crack propagation quantity in the rock failure process. In addition, the calculation results are in good agreement with the numerical analysis results, verifying the rationality of the equation. Rock mechanics Constitutive model Crack propagation Mesomechanism Damage Nonlinear deformation Huang, Zhonghua verfasserin aut Huang, Kan verfasserin aut Li, Yu verfasserin aut Peng, Huihua verfasserin aut Liang, Qiao verfasserin aut Ma, Kai verfasserin aut Enthalten in Engineering failure analysis Oxford [u.a.] : Elsevier Science, 1994 155 Online-Ressource (DE-627)320608697 (DE-600)2021082-6 (DE-576)120883619 1350-6307 nnns volume:155 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 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_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 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_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 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_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.32 Werkstoffmechanik VZ 50.16 Technische Zuverlässigkeit Instandhaltung VZ AR 155
allfields_unstemmed	10.1016/j.engfailanal.2023.107743 doi (DE-627)ELV065636473 (ELSEVIER)S1350-6307(23)00697-0 DE-627 ger DE-627 rda eng 600 VZ 51.32 bkl 50.16 bkl Li, Shengnan verfasserin aut Study on the evolution law and quantitative characterization of micro-crack propagation in the compressive failure process of rocks 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Quantitative characterization of the evolution law of micro-crack propagation in rocks is important for understanding the rock failure mechanism. This study aims to establish a theoretical method for quantitatively characterizing the evolution of micro-crack propagations during the compressive failure of rocks. Mechanical properties and failure characteristics of carbonaceous mudstone were investigated by triaxial compression tests. In order to study the evolution law of crack propagation morphology and quantity, numerical simulations of micro-crack propagation in rocks during triaxial compression were performed using the particle flow code (PFC). Based on the phenomenological theory, we proposed to define the rock damage increment by crack propagation quantity. The evolution law of crack quantity was characterized using the Logistic growth model. Furthermore, an equation for the evolution of micro-crack propagation quantity during compressive failure was established, and the rationality of the equation was verified. The results show that micro-cracks initiate in weak areas of rocks and develop and converge around existing cracks, eventually leading to localized failure through propagation and connection. The number of micro-cracks grows in an “S-shaped” pattern, accelerating before the peak stress, reaching a maximum growth rate at the peak stress, and decelerating in the post-peak stage. As the confining pressure increases, the number of rock micro-cracks increases, the propagation morphology becomes more complex, and the failure localization weakens. The proposed equation accurately characterizes the evolution of micro-crack propagation quantity in the rock failure process. In addition, the calculation results are in good agreement with the numerical analysis results, verifying the rationality of the equation. Rock mechanics Constitutive model Crack propagation Mesomechanism Damage Nonlinear deformation Huang, Zhonghua verfasserin aut Huang, Kan verfasserin aut Li, Yu verfasserin aut Peng, Huihua verfasserin aut Liang, Qiao verfasserin aut Ma, Kai verfasserin aut Enthalten in Engineering failure analysis Oxford [u.a.] : Elsevier Science, 1994 155 Online-Ressource (DE-627)320608697 (DE-600)2021082-6 (DE-576)120883619 1350-6307 nnns volume:155 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 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_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 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_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 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_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.32 Werkstoffmechanik VZ 50.16 Technische Zuverlässigkeit Instandhaltung VZ AR 155
allfieldsGer	10.1016/j.engfailanal.2023.107743 doi (DE-627)ELV065636473 (ELSEVIER)S1350-6307(23)00697-0 DE-627 ger DE-627 rda eng 600 VZ 51.32 bkl 50.16 bkl Li, Shengnan verfasserin aut Study on the evolution law and quantitative characterization of micro-crack propagation in the compressive failure process of rocks 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Quantitative characterization of the evolution law of micro-crack propagation in rocks is important for understanding the rock failure mechanism. This study aims to establish a theoretical method for quantitatively characterizing the evolution of micro-crack propagations during the compressive failure of rocks. Mechanical properties and failure characteristics of carbonaceous mudstone were investigated by triaxial compression tests. In order to study the evolution law of crack propagation morphology and quantity, numerical simulations of micro-crack propagation in rocks during triaxial compression were performed using the particle flow code (PFC). Based on the phenomenological theory, we proposed to define the rock damage increment by crack propagation quantity. The evolution law of crack quantity was characterized using the Logistic growth model. Furthermore, an equation for the evolution of micro-crack propagation quantity during compressive failure was established, and the rationality of the equation was verified. The results show that micro-cracks initiate in weak areas of rocks and develop and converge around existing cracks, eventually leading to localized failure through propagation and connection. The number of micro-cracks grows in an “S-shaped” pattern, accelerating before the peak stress, reaching a maximum growth rate at the peak stress, and decelerating in the post-peak stage. As the confining pressure increases, the number of rock micro-cracks increases, the propagation morphology becomes more complex, and the failure localization weakens. The proposed equation accurately characterizes the evolution of micro-crack propagation quantity in the rock failure process. In addition, the calculation results are in good agreement with the numerical analysis results, verifying the rationality of the equation. Rock mechanics Constitutive model Crack propagation Mesomechanism Damage Nonlinear deformation Huang, Zhonghua verfasserin aut Huang, Kan verfasserin aut Li, Yu verfasserin aut Peng, Huihua verfasserin aut Liang, Qiao verfasserin aut Ma, Kai verfasserin aut Enthalten in Engineering failure analysis Oxford [u.a.] : Elsevier Science, 1994 155 Online-Ressource (DE-627)320608697 (DE-600)2021082-6 (DE-576)120883619 1350-6307 nnns volume:155 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 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_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 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_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 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_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.32 Werkstoffmechanik VZ 50.16 Technische Zuverlässigkeit Instandhaltung VZ AR 155
allfieldsSound	10.1016/j.engfailanal.2023.107743 doi (DE-627)ELV065636473 (ELSEVIER)S1350-6307(23)00697-0 DE-627 ger DE-627 rda eng 600 VZ 51.32 bkl 50.16 bkl Li, Shengnan verfasserin aut Study on the evolution law and quantitative characterization of micro-crack propagation in the compressive failure process of rocks 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Quantitative characterization of the evolution law of micro-crack propagation in rocks is important for understanding the rock failure mechanism. This study aims to establish a theoretical method for quantitatively characterizing the evolution of micro-crack propagations during the compressive failure of rocks. Mechanical properties and failure characteristics of carbonaceous mudstone were investigated by triaxial compression tests. In order to study the evolution law of crack propagation morphology and quantity, numerical simulations of micro-crack propagation in rocks during triaxial compression were performed using the particle flow code (PFC). Based on the phenomenological theory, we proposed to define the rock damage increment by crack propagation quantity. The evolution law of crack quantity was characterized using the Logistic growth model. Furthermore, an equation for the evolution of micro-crack propagation quantity during compressive failure was established, and the rationality of the equation was verified. The results show that micro-cracks initiate in weak areas of rocks and develop and converge around existing cracks, eventually leading to localized failure through propagation and connection. The number of micro-cracks grows in an “S-shaped” pattern, accelerating before the peak stress, reaching a maximum growth rate at the peak stress, and decelerating in the post-peak stage. As the confining pressure increases, the number of rock micro-cracks increases, the propagation morphology becomes more complex, and the failure localization weakens. The proposed equation accurately characterizes the evolution of micro-crack propagation quantity in the rock failure process. In addition, the calculation results are in good agreement with the numerical analysis results, verifying the rationality of the equation. Rock mechanics Constitutive model Crack propagation Mesomechanism Damage Nonlinear deformation Huang, Zhonghua verfasserin aut Huang, Kan verfasserin aut Li, Yu verfasserin aut Peng, Huihua verfasserin aut Liang, Qiao verfasserin aut Ma, Kai verfasserin aut Enthalten in Engineering failure analysis Oxford [u.a.] : Elsevier Science, 1994 155 Online-Ressource (DE-627)320608697 (DE-600)2021082-6 (DE-576)120883619 1350-6307 nnns volume:155 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 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_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 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_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 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_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.32 Werkstoffmechanik VZ 50.16 Technische Zuverlässigkeit Instandhaltung VZ AR 155
language	English
source	Enthalten in Engineering failure analysis 155 volume:155
sourceStr	Enthalten in Engineering failure analysis 155 volume:155
format_phy_str_mv	Article
bklname	Werkstoffmechanik Technische Zuverlässigkeit Instandhaltung
institution	findex.gbv.de
topic_facet	Rock mechanics Constitutive model Crack propagation Mesomechanism Damage Nonlinear deformation
dewey-raw	600
isfreeaccess_bool	false
container_title	Engineering failure analysis
authorswithroles_txt_mv	Li, Shengnan @@aut@@ Huang, Zhonghua @@aut@@ Huang, Kan @@aut@@ Li, Yu @@aut@@ Peng, Huihua @@aut@@ Liang, Qiao @@aut@@ Ma, Kai @@aut@@
publishDateDaySort_date	2023-01-01T00:00:00Z
hierarchy_top_id	320608697
dewey-sort	3600
id	ELV065636473
language_de	englisch
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This study aims to establish a theoretical method for quantitatively characterizing the evolution of micro-crack propagations during the compressive failure of rocks. Mechanical properties and failure characteristics of carbonaceous mudstone were investigated by triaxial compression tests. In order to study the evolution law of crack propagation morphology and quantity, numerical simulations of micro-crack propagation in rocks during triaxial compression were performed using the particle flow code (PFC). Based on the phenomenological theory, we proposed to define the rock damage increment by crack propagation quantity. The evolution law of crack quantity was characterized using the Logistic growth model. Furthermore, an equation for the evolution of micro-crack propagation quantity during compressive failure was established, and the rationality of the equation was verified. The results show that micro-cracks initiate in weak areas of rocks and develop and converge around existing cracks, eventually leading to localized failure through propagation and connection. The number of micro-cracks grows in an “S-shaped” pattern, accelerating before the peak stress, reaching a maximum growth rate at the peak stress, and decelerating in the post-peak stage. As the confining pressure increases, the number of rock micro-cracks increases, the propagation morphology becomes more complex, and the failure localization weakens. The proposed equation accurately characterizes the evolution of micro-crack propagation quantity in the rock failure process. 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author	Li, Shengnan
spellingShingle	Li, Shengnan ddc 600 bkl 51.32 bkl 50.16 misc Rock mechanics misc Constitutive model misc Crack propagation misc Mesomechanism misc Damage misc Nonlinear deformation Study on the evolution law and quantitative characterization of micro-crack propagation in the compressive failure process of rocks
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topic_title	600 VZ 51.32 bkl 50.16 bkl Study on the evolution law and quantitative characterization of micro-crack propagation in the compressive failure process of rocks Rock mechanics Constitutive model Crack propagation Mesomechanism Damage Nonlinear deformation
topic	ddc 600 bkl 51.32 bkl 50.16 misc Rock mechanics misc Constitutive model misc Crack propagation misc Mesomechanism misc Damage misc Nonlinear deformation
topic_unstemmed	ddc 600 bkl 51.32 bkl 50.16 misc Rock mechanics misc Constitutive model misc Crack propagation misc Mesomechanism misc Damage misc Nonlinear deformation
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title	Study on the evolution law and quantitative characterization of micro-crack propagation in the compressive failure process of rocks
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title_full	Study on the evolution law and quantitative characterization of micro-crack propagation in the compressive failure process of rocks
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title_sort	study on the evolution law and quantitative characterization of micro-crack propagation in the compressive failure process of rocks
title_auth	Study on the evolution law and quantitative characterization of micro-crack propagation in the compressive failure process of rocks
abstract	Quantitative characterization of the evolution law of micro-crack propagation in rocks is important for understanding the rock failure mechanism. This study aims to establish a theoretical method for quantitatively characterizing the evolution of micro-crack propagations during the compressive failure of rocks. Mechanical properties and failure characteristics of carbonaceous mudstone were investigated by triaxial compression tests. In order to study the evolution law of crack propagation morphology and quantity, numerical simulations of micro-crack propagation in rocks during triaxial compression were performed using the particle flow code (PFC). Based on the phenomenological theory, we proposed to define the rock damage increment by crack propagation quantity. The evolution law of crack quantity was characterized using the Logistic growth model. Furthermore, an equation for the evolution of micro-crack propagation quantity during compressive failure was established, and the rationality of the equation was verified. The results show that micro-cracks initiate in weak areas of rocks and develop and converge around existing cracks, eventually leading to localized failure through propagation and connection. The number of micro-cracks grows in an “S-shaped” pattern, accelerating before the peak stress, reaching a maximum growth rate at the peak stress, and decelerating in the post-peak stage. As the confining pressure increases, the number of rock micro-cracks increases, the propagation morphology becomes more complex, and the failure localization weakens. The proposed equation accurately characterizes the evolution of micro-crack propagation quantity in the rock failure process. In addition, the calculation results are in good agreement with the numerical analysis results, verifying the rationality of the equation.
abstractGer	Quantitative characterization of the evolution law of micro-crack propagation in rocks is important for understanding the rock failure mechanism. This study aims to establish a theoretical method for quantitatively characterizing the evolution of micro-crack propagations during the compressive failure of rocks. Mechanical properties and failure characteristics of carbonaceous mudstone were investigated by triaxial compression tests. In order to study the evolution law of crack propagation morphology and quantity, numerical simulations of micro-crack propagation in rocks during triaxial compression were performed using the particle flow code (PFC). Based on the phenomenological theory, we proposed to define the rock damage increment by crack propagation quantity. The evolution law of crack quantity was characterized using the Logistic growth model. Furthermore, an equation for the evolution of micro-crack propagation quantity during compressive failure was established, and the rationality of the equation was verified. The results show that micro-cracks initiate in weak areas of rocks and develop and converge around existing cracks, eventually leading to localized failure through propagation and connection. The number of micro-cracks grows in an “S-shaped” pattern, accelerating before the peak stress, reaching a maximum growth rate at the peak stress, and decelerating in the post-peak stage. As the confining pressure increases, the number of rock micro-cracks increases, the propagation morphology becomes more complex, and the failure localization weakens. The proposed equation accurately characterizes the evolution of micro-crack propagation quantity in the rock failure process. In addition, the calculation results are in good agreement with the numerical analysis results, verifying the rationality of the equation.
abstract_unstemmed	Quantitative characterization of the evolution law of micro-crack propagation in rocks is important for understanding the rock failure mechanism. This study aims to establish a theoretical method for quantitatively characterizing the evolution of micro-crack propagations during the compressive failure of rocks. Mechanical properties and failure characteristics of carbonaceous mudstone were investigated by triaxial compression tests. In order to study the evolution law of crack propagation morphology and quantity, numerical simulations of micro-crack propagation in rocks during triaxial compression were performed using the particle flow code (PFC). Based on the phenomenological theory, we proposed to define the rock damage increment by crack propagation quantity. The evolution law of crack quantity was characterized using the Logistic growth model. Furthermore, an equation for the evolution of micro-crack propagation quantity during compressive failure was established, and the rationality of the equation was verified. The results show that micro-cracks initiate in weak areas of rocks and develop and converge around existing cracks, eventually leading to localized failure through propagation and connection. The number of micro-cracks grows in an “S-shaped” pattern, accelerating before the peak stress, reaching a maximum growth rate at the peak stress, and decelerating in the post-peak stage. As the confining pressure increases, the number of rock micro-cracks increases, the propagation morphology becomes more complex, and the failure localization weakens. The proposed equation accurately characterizes the evolution of micro-crack propagation quantity in the rock failure process. In addition, the calculation results are in good agreement with the numerical analysis results, verifying the rationality of the equation.
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title_short	Study on the evolution law and quantitative characterization of micro-crack propagation in the compressive failure process of rocks
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author2	Huang, Zhonghua Huang, Kan Li, Yu Peng, Huihua Liang, Qiao Ma, Kai
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up_date	2024-07-06T23:43:25.648Z
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Study on the evolution law and quantitative characterization of micro-crack propagation in the compressive failure process of rocks

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