Knowledge Management System of Institue of Mechanics, CAS
| Damage evolution, localization and failure of solids subjected to impact loading | |
Bai YL(白以龙) ; Bai J(白洁); Li HL(李晖凌); Ke FJ(柯孚久); Xia MF(夏蒙棼); Bai, YL (reprint author), Chinese Acad Sci, Inst Mech, Lab Non Linear Mech Continuous Media, Beijing 100080, Peoples R China.
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| Source Publication | International Journal of Heat and Mass Transfer
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| 2000 | |
| Volume | 24Issue:6-7Pages:685-701 |
| ISSN | 0734-743X |
| Abstract | In order to reveal the underlying mesoscopic mechanism governing the experimentally observed failure in solids subjected to impact loading, this paper presents a model of statistical microdamage evolution to macroscopic failure, in particular to spallation. Based on statistical microdamage mechanics and experimental measurement of nucleation and growth of microcracks in an Al alloy subjected to plate impact loading, the evolution law of damage and the dynamical function of damage are obtained. Then, a lower bound to damage localization can be derived. It is found that the damage evolution beyond the threshold of damage localization is extremely fast. So, damage localization can serve as a precursor to failure. This is supported by experimental observations. On the other hand, the prediction of failure becomes more accurate, when the dynamic function of damage is fitted with longer experimental observations. We also looked at the failure in creep with the same idea. Still, damage localization is a nice precursor to failure in creep rupture. |
| Subject Area | 力学 |
| DOI | 10.1016/S0734-743X(99)00151-7 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000087666100014 |
| WOS Keyword | ALUMINUM-ALLOY ; RUPTURE |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/16244 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Bai, YL (reprint author), Chinese Acad Sci, Inst Mech, Lab Non Linear Mech Continuous Media, Beijing 100080, Peoples R China. |
| Recommended Citation GB/T 7714 | Bai YL,Bai J,Li HL,et al. Damage evolution, localization and failure of solids subjected to impact loading[J]. International Journal of Heat and Mass Transfer,2000,24,6-7,:685-701. |
| APA | 白以龙,白洁,李晖凌,柯孚久,夏蒙棼,&Bai, YL .(2000).Damage evolution, localization and failure of solids subjected to impact loading.International Journal of Heat and Mass Transfer,24(6-7),685-701. |
| MLA | 白以龙,et al."Damage evolution, localization and failure of solids subjected to impact loading".International Journal of Heat and Mass Transfer 24.6-7(2000):685-701. |
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