Knowledge Management System of Institue of Mechanics, CAS
| A meso elastoplastic constitutive model for polycrystalline metals based on equivalent slip systems with latent hardening | |
Liang NG(梁乃刚) ; Liu HQ(刘洪秋); Wang ZQ(王自强); Liang, NG (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China.
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| 发表期刊 | Science in China Series A-Mathematics
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| 1998 | |
| 卷号 | 41期号:8页码:887-896 |
| ISSN | 1006-9283 |
| 摘要 | A meso material model for polycrystalline metals is proposed, in which the tiny slip systems distributing randomly between crystal slices in micro-grains or on grain boundaries are replaced by macro equivalent slip systems determined by the work-conjugate principle. The elastoplastic constitutive equation of this model is formulated for the active hardening, latent hardening and Bauschinger effect to predict macro elastoplastic stress-strain responses of polycrystalline metals under complex loading conditions. The influence of the material property parameters on size and shape of the subsequent yield surfaces is numerically investigated to demonstrate the fundamental features of the proposed material model. The derived constitutive equation is proved accurate and efficient in numerical analysis. Compared with the self-consistent theories with crystal grains as their basic components, the present theory is much simpler in mathematical treatment. |
| 学科领域 | 力学 |
| DOI | 10.1007/BF02871672 |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000075306500011 |
| WOS研究方向 | Mathematics |
| WOS类目 | Mathematics, Applied ; Mathematics |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/15778 |
| 专题 | 力学所知识产出(1956-2008) |
| 通讯作者 | Liang, NG (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Liang NG,Liu HQ,Wang ZQ,et al. A meso elastoplastic constitutive model for polycrystalline metals based on equivalent slip systems with latent hardening[J]. Science in China Series A-Mathematics,1998,41,8,:887-896. |
| APA | 梁乃刚,刘洪秋,王自强,&Liang, NG .(1998).A meso elastoplastic constitutive model for polycrystalline metals based on equivalent slip systems with latent hardening.Science in China Series A-Mathematics,41(8),887-896. |
| MLA | 梁乃刚,et al."A meso elastoplastic constitutive model for polycrystalline metals based on equivalent slip systems with latent hardening".Science in China Series A-Mathematics 41.8(1998):887-896. |
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