| 虚拟裂纹闭合法在结构断裂分析中的应用 |
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| 引用本文： | 肖涛,左正兴.虚拟裂纹闭合法在结构断裂分析中的应用[J].计算力学学报,2008,25(Z1). |
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| 作者姓名： | 肖涛 左正兴 |
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| 作者单位： | 北京理工大学机械与车辆工程学院; |
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| 基金项目： | 国家部委预研项目
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| 摘 要： | 基于三维虚拟裂纹技术(3DVCCT),利用ABAQUS用户单元子程序(UEL)编写裂纹界面单元,使3DVCCT集成于ABAQUS软件中,直接计算出裂纹的断裂参数.采用此方法对连杆杆身表面裂纹进行研究,得到了连杆裂纹的应力强度因子的分布规律.
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| 关 键 词： | 应力强度因子 虚拟裂纹扩展法 界面单元 连杆 |
Application of virtual crack closure technique in structure fracture analysis |
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| XIAO Tao,ZUO Zheng-xing.Application of virtual crack closure technique in structure fracture analysis[J].Chinese Journal of Computational Mechanics,2008,25(Z1). |
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| Authors: | XIAO Tao ZUO Zheng-xing |
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| Institution: | School of Mechanical Vehicular Engineering;Beijing Institute of Technology;Beijing 100081;China |
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| Abstract: | Using the 3D virtual crack closure technique,an interface element that can calculate stress intensity factors(SIFs) directly has been developed and implemented into ABAQUS with its user-defined element(UEL) feature.Then use this method to study the surface crack in connecting rod,and the SIFs along the crack are given. |
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| Keywords: | stress intensity factor virtual crack closure technique Interfacial element Connecting rod |
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