| 表面裂纹受拉伸板三维弹塑性有限元分析模型及其J积分 |
| |
| 引用本文： | 刘东学,谢志刚.表面裂纹受拉伸板三维弹塑性有限元分析模型及其J积分[J].大连理工大学学报,1998,38(2):146-151. |
| |
| 作者姓名： | 刘东学 谢志刚 |
| |
| 作者单位： | 大连理工大学化工机械系 |
| |
| 摘 要： | 使用Ｑｃ１１和Ｑ６块体单元，对带有表面裂纹的受拉伸板建立了一种三维弹塑性有限元分析模型；将虚裂纹扩展法（ＶＣＥ）用于所分析的表面裂纹。数值结果表明，这一模型对理想弹塑性，线性强化和１６ＭｎＲ材料均适用，且具有计算量小，一致性好的优点。
|
| 关 键 词： | 表面裂纹 弹塑性 有限元 J积分 |
Finite element model of 3 D elastic plastic analysis and J integral calculations for surface crack in plate under tension |
| |
| Liu Dongxue,Xie Zhigang,Li Huirong.Finite element model of 3 D elastic plastic analysis and J integral calculations for surface crack in plate under tension[J].Journal of Dalian University of Technology,1998,38(2):146-151. |
| |
| Authors: | Liu Dongxue Xie Zhigang Li Huirong |
| |
| Abstract: | A 3 D elastic plastic finite element model for a surface crack is proposed by using Q c11 and Q 6 cubic elements, and J integral around the crack front was calculated by using the virtual crack extension method. For linear hardening materials and 16MnR materials, 3 D elastic plastic J interal was computed for semi elliptical surface flaws in the plate under tension. The results of 3 D elastic plastic numerical examples show that it is simpler, more accurate and consistant for the 3 D finite element model and employed virtual crack extension method. |
| |
| Keywords: | surface cracks elastic plastic finite element methods J integral/virtual crack extension method |
| 本文献已被 CNKI 维普 等数据库收录！ |
