A strain gradient brittle fracture model based on two-scale asymptotic analysis
文献类型：期刊论文
| 作者 | Rao, Yipeng1,2; Xiang, Meizhen1; Cui, Junzhi2 |
| 刊名 | JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 159页码:19 |
| ISSN号 | 0022-5096 |
| 关键词 | Brittle fracture Strain gradient Griffith criterion Asymptotic analysis |
| DOI | 10.1016/j.jmps.2021.104752 |
| 英文摘要 | Based on a two-scale asymptotic analysis procedure, we rigorously derive a new macroscopic brittle fracture model for materials with micro-cracks inside. Strain gradient effects are naturally involved in the model in the absence of any phenomenological assumptions. Coefficients of the fracture criterion are expressed in form of derivatives of the fourth-and sixth-order effective elastic tensors that are explicitly related to solutions of the first order unit cell problems. The model is numerically implemented into a finite element code. Abilities of the model to predict microstructure size effects and strain gradient effects on macro fracture behaviors are confirmed by numerical simulations. The model is also validated against experimental measurements. |
| 资助项目 | National Natural Science Foundation of China[11772068] ; National Natural Science Foundation of China[51739007] ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| WOS研究方向 | Materials Science ; Mechanics ; Physics |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000789155600002 |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/60405]  |
| 专题 | 中国科学院数学与系统科学研究院 |
| 通讯作者 | Xiang, Meizhen; Cui, Junzhi |
| 作者单位 | 1.Inst Appl Phys & Computat Math, Lab Computat Phys, Beijing 100088, Peoples R China 2.Chinese Acad Sci, Acad Math & Syst Sci, ICMSEC, LSEC, Beijing 100090, Peoples R China |
| 推荐引用方式 GB/T 7714 | Rao, Yipeng,Xiang, Meizhen,Cui, Junzhi. A strain gradient brittle fracture model based on two-scale asymptotic analysis[J]. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,2022,159:19. |
| APA | Rao, Yipeng,Xiang, Meizhen,&Cui, Junzhi.(2022).A strain gradient brittle fracture model based on two-scale asymptotic analysis.JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,159,19. |
| MLA | Rao, Yipeng,et al."A strain gradient brittle fracture model based on two-scale asymptotic analysis".JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 159(2022):19. |
入库方式： OAI收割
来源：数学与系统科学研究院
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