Weibull modulus for diverse strength due to sample-specificity
文献类型：期刊论文
| 作者 | Bai YL(白以龙) ; Wei YJ(魏宇杰); Xia MF(夏蒙棼); Ke FJ(柯孚久)
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| 刊名 | Theoretical and Applied Fracture Mechanics
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| 出版日期 | 2000 |
| 卷号 | 34期号:3页码:211-216 |
| ISSN号 | 0167-8442 |
| 通讯作者 | Bai, YL (reprint author), Chinese Acad Sci, Inst Mech, Lab Nonlinear Mech, Beijing 100080, Peoples R China. |
| 中文摘要 | By sample specificity it is meant that specimens with the same nominal material parameters and tested under the same environmental conditions may exhibit different behavior with diversified strength. Such an effect has been widely observed in the testing of material failure and is usually attributed to the heterogeneity of material at the mesoscopic level. The degree with which mesoscopic heterogeneity affects macroscopic failure is still not clear. Recently, the problem has been examined by making use of statistical ensemble evolution of dynamical system and the mesoscopic stress re-distribution model (SRD). Sample specificity was observed for non-global mean stress field models, such as the duster mean field model, stress concentration at tip of microdamage, etc. Certain heterogeneity of microdamage could be sensitive to particular SRD leading to domino type of coalescence. Such an effect could start from the microdamage heterogeneity and then be magnified to other scale levels. This trans-scale sensitivity is the origin of sample specificity. The sample specificity leads to a failure probability Phi (N) with a transitional region 0 < |
| 学科主题 | 力学 |
| 类目[WOS] | Engineering, Mechanical ; Mechanics |
| 研究领域[WOS] | Engineering ; Mechanics |
| 关键词[WOS] | EVOLUTION ; SENSITIVITY ; FAILURE ; MODEL |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000090120900003 |
| 公开日期 | 2007-06-15 ; 2007-12-05 ; 2009-06-23 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/17017]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Bai YL,Wei YJ,Xia MF,et al. Weibull modulus for diverse strength due to sample-specificity[J]. Theoretical and Applied Fracture Mechanics,2000,34(3):211-216. |
| APA | 白以龙,魏宇杰,夏蒙棼,&柯孚久.(2000).Weibull modulus for diverse strength due to sample-specificity.Theoretical and Applied Fracture Mechanics,34(3),211-216. |
| MLA | 白以龙,et al."Weibull modulus for diverse strength due to sample-specificity".Theoretical and Applied Fracture Mechanics 34.3(2000):211-216. |
入库方式： OAI收割
来源：力学研究所
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