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A damage model of mechanical behavior of porous materials: Application to sandstone
Li MY; Cao YJ; Shen WQ; Shao JF
2018-09-01
发表期刊INTERNATIONAL JOURNAL OF DAMAGE MECHANICS
卷号27期号:9页码:1325-1351
ISSN1056-7895
摘要In this work, a multiscale model based on the Fast Fourier Transform (FFT) technique is applied to describe the mechanical behavior of porous materials. The effects of the microstructures (such as pore shape, number, size, distribution and orientation) on the overall strength of the porous medium and its microstress distribution are fully studied. The elastoplastic model is further extended by including a damage process. The influences of microstructure on the damage evolution of the porous medium are discussed and illustrated numerically. Then the proposed multiscale damage model is applied to study the macroscopic behavior of porous sandstone. According to the microstructure of the studied material, a representative elementary volume with randomly distributed spherical pores is considered. The solid phase of the sandstone is assumed to obey the Drucker-Prager criterion. Taking advantage of the FFT-based method, the evolution of generated damage is clearly illustrated during the loading process at the microscopic level. Comparisons between numerical results and experimental data show the efficiency of the proposed numerical model.
关键词Homogenization fast Fourier transform plasticity damage porous material
DOI10.1177/1056789516685379
URL查看原文
收录类别SCI ; EI
语种英语
WOS记录号WOS:000441978100003
关键词[WOS]GREEN TYPE MATRIX ; APPROXIMATE MODELS ; DUCTILE METALS ; MACROSCOPIC CRITERION ; NONLINEAR COMPOSITES ; ELLIPSOIDAL CAVITIES ; NONSPHERICAL VOIDS ; NUMERICAL-METHOD ; YIELD CRITERIA ; FLOW RULES
WOS研究方向Materials Science, Multidisciplinary ; Mechanics
WOS类目Materials Science ; Mechanics
论文分区二类
力学所作者排名1
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77945
专题非线性力学国家重点实验室
作者单位1.[Li, M. Y.] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
2.[Li, M. Y.
3.Cao, Y. J.
4.Shen, W. Q.
5.Shao, J. F.] Univ Lille, CNRS, LML, UMR 8107, F-59655 Villeneuve Dascq, France
6.[Cao, Y. J.] Hohai Univ, Geotech Res Inst, Nanjing, Jiangsu, Peoples R China
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Li MY,Cao YJ,Shen WQ,et al. A damage model of mechanical behavior of porous materials: Application to sandstone[J]. INTERNATIONAL JOURNAL OF DAMAGE MECHANICS,2018,27(9):1325-1351.
APA Li MY,Cao YJ,Shen WQ,&Shao JF.(2018).A damage model of mechanical behavior of porous materials: Application to sandstone.INTERNATIONAL JOURNAL OF DAMAGE MECHANICS,27(9),1325-1351.
MLA Li MY,et al."A damage model of mechanical behavior of porous materials: Application to sandstone".INTERNATIONAL JOURNAL OF DAMAGE MECHANICS 27.9(2018):1325-1351.
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