| 自适应分析在确定裂纹尖端塑性区中的应用 |
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| 引用本文： | 王建华,杨磊,等.自适应分析在确定裂纹尖端塑性区中的应用[J].计算力学学报,2001,18(1):111-117. |
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| 作者姓名： | 王建华 杨磊 |
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| 作者单位： | 上海交通大学,建筑工程与力学学院,上海,200030 |
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| 基金项目： | 国家自然科学基金项目 !(598790 12 ) |
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| 摘 要： | 在分析裂纹扩展及材料强度时对塑性区的估算是很重要的，本文提出采用自适应有限元分析来确定裂纹尖端塑性区的方法，计算结果表明这种方法通过网格自动加密能够有效地跟踪出弹塑性的交界面。
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| 关 键 词： | 裂纹尖端塑性区 自适应网格加密 塑性区跟踪 断裂力学 |
| 文章编号： | 1007-4708（2001）01-0111-07 |
| 修稿时间： | 1998年2月11日 |
Determination of the shape of plastic zone near crack tip by adaptive FEA |
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| WANG Jian\|hu,\ YANG Lei,\ SHEN Wei\|ping.Determination of the shape of plastic zone near crack tip by adaptive FEA[J].Chinese Journal of Computational Mechanics,2001,18(1):111-117. |
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| Authors: | WANG Jian\|hu \ YANG Lei \ SHEN Wei\|ping |
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| Abstract: | It is important to estimate the plastic zone in the analysis of crack propagation and material strength. A new method using the adaptive finite element analysis to determine the shape of plastic zone near the crack tip is proposed in this paper. The results showed that this method could be used to trace the interface line between elastic zone and plastic zone by adaptive mesh refinement combined with elastoplastic constitutive model during non\|linear adaptive finite element analysis. |
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| Keywords: | plastic zone of crack tip adaptive mesh refinement tracing plastic zone |
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