考虑就位效应的复合材料强度分析模型及试验

复合材料科学与工程 ›› 2021, Vol. 0 ›› Issue (2): 49-53.

考虑就位效应的复合材料强度分析模型及试验

叶梯¹, 岳源¹, 马铭泽²

1.中国民用航空飞行学院航空工程学院,广汉618307;
2.南京航空航天大学机械结构力学及控制国家重点试验室,南京210016

收稿日期:2020-05-29 出版日期:2021-02-28 发布日期:2021-03-10
作者简介:叶梯(1993-),男,硕士,助教,研究方向为飞行器结构设计,kukolsss@163.com。
基金资助:
中国民用航空局民航教育类人才资助项目(14002600100017J173)

STRENGTH ANALYSIS MODEL CONSIDERING IN-SITU EFFECT
AND EXPERIMENT OF COMPOSITE

YE Ti¹, YUE Yuan¹, MA Ming-ze²

1. Aviation Engineering Institute, Civil Aviation Flight University of China, Guanghan 618307, China;
2. Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Received:2020-05-29 Online:2021-02-28 Published:2021-03-10

摘要/Abstract

摘要： 针对复合材料破坏强度预测问题,建立了数值分析模型。模型以三维PUCK准则为失效判据,采用基于连续介质损伤力学(CDM)的退化准则,并考虑了就位效应的影响。分析模型通过将自编材料子程序(UMAT)嵌入ABAQUS实现。进行了碳纤维复合材料开孔拉伸试验以验证模型的准确性,试验结果与分析结果对比表明:模型能较好地预测试验件的破坏强度,并能推演整个损伤发展过程;复合材料强度分析中应适当考虑就位效应。

关键词: 复合材料, 数值分析, PUCK准则, 就位效应, 试验

Abstract: A numerical analysis model is established to predict the strength of composite. The 3-d PUCK criterion is used as the failure criterion, and the degradation criterion based on the continuum damage mechanics (CDM) is adopted in the model. Meanwhile, the in-situ effect is taken into account. The analysis model is implemented by the user material subroutine (UMAT) embedded in ABAQUS. The accuracy of the model is verified by tensile test of carbon fiber composites with open hole. The results show that the model can predict the strength of the test and the damage development process,the in-situ effect should be considered in the strength analysis of composite materials.

Key words: composite, numerical study, PUCK criteria, in-situ effect, experiment

中图分类号:

TB332

叶梯, 岳源, 马铭泽. 考虑就位效应的复合材料强度分析模型及试验[J]. 复合材料科学与工程, 2021, 0(2): 49-53.

YE Ti, YUE Yuan, MA Ming-ze. STRENGTH ANALYSIS MODEL CONSIDERING IN-SITU EFFECT
AND EXPERIMENT OF COMPOSITE[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(2): 49-53.

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