Knowledge Management System of Institue of Mechanics, CAS
| Crack tip behavior and crack-propagation in ductile materials | |
Li GC(李国琛) ; Liu HQ; Du ML; Hong YS(洪友士); Zhang X; LI, GC (reprint author), ACAD SINICA,INST MECH,BEIJING 100080,PEOPLES R CHINA.
| |
| Source Publication | Fatigue & Fracture of Engineering Materials & Structures
 |
| 1992 | |
| Volume | 15Issue:2Pages:187-202 |
| ISSN | 8756-758X |
| Abstract | Dilatational plastic equations, which can include the effects of ductile damage, are derived based on the equivalency in expressions for dissipated plastic work. Void damage developed internally at the large-strain stage is represented by an effective continuum being strain-softened and plastically dilated. Accumulation of this local damage leads to progressive failure in materials. With regard to this microstructural background, the constitutive parameters included for characterizing material behaviour have the sense of internal variables. They are not able to be determined explicitly by macroscopic testing but rather through computer simulation of experimental curves and data. Application of this constitutive model to mode-I cracking examples demonstrates that a huge strain concentration accompanied by a substantial drop of stress does occur near the crack tip. Eventually, crack propagation is simulated by using finite elements in computations. Two numerical examples show good accordance with experimental data. The whole procedure of study serves as a justification of the constitutive formulation proposed in the text. |
| DOI | 10.1111/j.1460-2695.1992.tb00048.x |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:A1992HC33700007 |
| WOS Research Area | Engineering ; Materials Science |
| WOS Subject | Engineering, Mechanical ; Materials Science, Multidisciplinary |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/39494 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | LI, GC (reprint author), ACAD SINICA,INST MECH,BEIJING 100080,PEOPLES R CHINA. |
| Recommended Citation GB/T 7714 | Li GC,Liu HQ,Du ML,et al. Crack tip behavior and crack-propagation in ductile materials[J]. Fatigue & Fracture of Engineering Materials & Structures,1992,15,2,:187-202. |
| APA | Li GC,Liu HQ,Du ML,Hong YS,Zhang X,&LI, GC .(1992).Crack tip behavior and crack-propagation in ductile materials.Fatigue & Fracture of Engineering Materials & Structures,15(2),187-202. |
| MLA | Li GC,et al."Crack tip behavior and crack-propagation in ductile materials".Fatigue & Fracture of Engineering Materials & Structures 15.2(1992):187-202. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| ja115.pdf（912KB） | 开放获取 | -- | View Download | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment