Generalized Mohr-Coulomb strain criterion for bulk metallic glasses under complex compressive loading
文献类型：期刊论文
| 作者 | Yu L(喻立); Wang ZQ(王自强)
|
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2019-08-29 |
| 卷号 | 9页码:9 |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/s41598-019-49085-1 |
| 通讯作者 | Wang, Tzu-Chiang(tcwang@imech.ac.cn) |
| 英文摘要 | The Mohr-Coulomb (M-C) stress criterion is widely applied to describe the pressure sensitivity of bulk metallic glasses (BMGs). However, this criterion is incapable of predicting the variation in fracture angles under different loading modes. Moreover, the M-C criterion cannot describe the plastic fracture of BMGs under compressive loading because the nominal stress of most BMGs remains unchanged after the materials yield. Based on these limitations, we propose a new generalized M-C strain criterion and apply it to analyze the fracture behaviors of two typical Zr-based BMG round bar specimens under complex compressive loading. In this case, the predicted initial yielding stress is in good agreement with the experimental results. The theoretical results can also describe the critical shear strain and fracture angle of BMGs that are associated with the deformation mode. |
| 分类号 | 二类/Q1 |
| WOS关键词 | YIELD CRITERION ; PLASTICITY ; DEFORMATION ; PRESSURE ; BEHAVIOR ; FRACTURE ; LOCALIZATION ; ENHANCEMENT ; FLOW |
| 资助项目 | National Natural Science Foundation of China[11702295] ; National Natural Science Foundation of China[11790292] ; National Natural Science Foundation of China[11602272] ; National Natural Science Foundation of China[11602270] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040503] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000483017100033 |
| 资助机构 | National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 其他责任者 | Wang, Tzu-Chiang |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/79955]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Yu L,Wang ZQ. Generalized Mohr-Coulomb strain criterion for bulk metallic glasses under complex compressive loading[J]. SCIENTIFIC REPORTS,2019,9:9. |
| APA | 喻立,&王自强.(2019).Generalized Mohr-Coulomb strain criterion for bulk metallic glasses under complex compressive loading.SCIENTIFIC REPORTS,9,9. |
| MLA | 喻立,et al."Generalized Mohr-Coulomb strain criterion for bulk metallic glasses under complex compressive loading".SCIENTIFIC REPORTS 9(2019):9. |
入库方式： OAI收割
来源：力学研究所
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