| 王建华,杨磊.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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| 自适应分析在确定裂纹尖端塑性区中的应用 |
| Determination of the shape of plastic zone near crack tip by adaptive FEA |
| 修订日期：1998-02-11 |
| DOI：10.7511/jslx20011022 |
| 中文关键词: 裂纹尖端塑性区 自适应网格加密 塑性区跟踪 断裂力学 |
| 英文关键词:plastic zone of crack tip,adaptive mesh refinement,tracing plastic zone |
| 基金项目:国家自然科学基金项目 !(598790 12 ) |
| 王建华 杨磊 |
| [1]上海交通大学建筑工程与力学学院，上海200030 [2]上海交通大学建筑工程与力学学院，上海2 |
| 摘要点击次数: 1454 |
| 全文下载次数: 8 |
| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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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