| Mechanism of crack evolution and strength failure in chemo-mechanical induced fracture | |
| Yin JJ(尹佳静); Yuan QZ(袁泉子) | |
| Corresponding Author | Yuan, Quanzi(yuanquanzi@lnm.imech.ac.cn) |
| Source Publication | JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
 |
| 2024-02-01 | |
| Volume | 183Pages:14 |
| ISSN | 0022-5096 |
| Abstract | Chemo-mechanical coupled fracture is ubiquitous among various application fields. Under-standing the mechanism of crack propagation is critical to the prediction and control of fracture behavior. In this paper, mechanical damage and chemical erosion have been investigated by a combination of experiments and theoretical analysis. We developed a theoretical model to analyze the interface evolution and the mechanical state of the crack tip in chemically active environments based on the transition-state theory. This model enables us to predict mechanical failure and chemical corrosion of materials exposed to external acid attack. Theoretical pre-dictions of the corrosion rate and fracture strength have been validated by fracture experiments performed in corrosive solutions of different concentrations. In particular, we discovered a non -monotonic and non-linear relationship between the degree of corrosion and fracture strength, which demonstrates that corrosion-induced crack tip blunting and mass loss of materials together affect the cracking critical state. We further conducted the thermodynamic analysis of a quasi -static cracked body to investigate the effect of corrosion on energy stored in the crack tip. Our theory-experiment-combined study reveals the mechanism of coupling chemical and mechanical damage, which provides significant insight into corrosion-induced fracture behavior in aggressive environments. |
| Keyword | chemo-mechanical coupling fracture corrosion crack tip energy evolution |
| DOI | 10.1016/j.jmps.2023.105525 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001146996800001 |
| WOS Keyword | CORROSION-FATIGUE BEHAVIOR ; FILM RUPTURE MODEL ; TEMPERATURE ; TRANSITION ; AZ61 |
| WOS Research Area | Materials Science ; Mechanics ; Physics |
| WOS Subject | Materials Science, Multidisciplinary ; Mechanics ; Physics, Condensed Matter |
| Funding Project | National Natural Science Foundation of China[12072346] ; National Natural Science Foundation of China[12032019] ; National Key Research and Development Program of China[2022YFA1203200] |
| Funding Organization | National Natural Science Foundation of China ; National Key Research and Development Program of China |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | Yuan, Quanzi |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/94220 |
| Collection | 非线性力学国家重点实验室 |
| Recommended Citation GB/T 7714 | Yin JJ,Yuan QZ. Mechanism of crack evolution and strength failure in chemo-mechanical induced fracture[J]. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,2024,183:14. |
| APA | 尹佳静,&袁泉子.(2024).Mechanism of crack evolution and strength failure in chemo-mechanical induced fracture.JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,183,14. |
| MLA | 尹佳静,et al."Mechanism of crack evolution and strength failure in chemo-mechanical induced fracture".JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 183(2024):14. |
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