A damage model of mechanical behavior of porous materials: Application to sandstone | |
Li MY1,2; Cao YJ2,3; Shen WQ2; Shao JF2 | |
发表期刊 | INTERNATIONAL JOURNAL OF DAMAGE MECHANICS |
2018-09-01 | |
卷号 | 27期号:9页码:1325-1351 |
ISSN | 1056-7895 |
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 |
DOI | 10.1177/1056789516685379 |
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 | |
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.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 2.Univ Lille, CNRS, LML, UMR 8107, F-59655 Villeneuve Dascq, France 3.Hohai Univ, Geotech Res Inst, Nanjing, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | 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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