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基于应变不变量失效理论的自动校核程序设计与实现

Design and achievement of automatic check program based on SIFT
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摘要 复合材料的微观力学评价方法是近年来的研究热点。在对Gosse J.H等提出的应变不变量失效准则(SIFT)进行研究的基础上,通过PCL实现了基于该准则的复合材料评价自动化程序。该程序同时考虑了机械载荷和热载荷情况,并建立了代表体元(RVE)的p型单元微观力学模型。利用该模型在周期性边界条件下的力学响应因子对宏观力学模型进行修正。同时讨论了微观模型修正系数的收敛性。最后,通过开孔拉伸实例对该程序进行了实算,计算结果合理。本自动校核程序为基于微观力学的复合材料失效评价提供了一种便捷工具。
作者 丁玉波
出处 《制造业自动化》 CSCD 2017年第4期11-15,65,共6页 Manufacturing Automation
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