基于Puck准则的2.5D机织复合材料压缩性能研究

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英文篇名：Study on Compressive Strength of 2.5D Woven Composite Materials using Puck's Criteria 作者：季乐 ; 周光明 ; 王新峰 ; 孙琎 ; 王宇 英文作者：JI Le;ZHOU Guang-ming;WANG Xin-feng;SUN Jin;WANG Yu;State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and Astronautics; 关键词：2.5D机织 ; Puck准则 ; 压缩 ; 渐进损伤 ; 破坏路径 英文关键词：2.5D wowen;;Puck criteria;;compression;;progressive damage;;fracture trace 中文刊名：HKJJ 英文刊名：Aeronautical Computing Technique 机构：南京航空航天大学机械结构力学及控制国家重点实验室; 出版日期：2016-01-25 出版单位：航空计算技术 年：2016 期：v.46;No.190 语种：中文; 页：HKJJ201601006 页数：5 CN：01 ISSN：61-1276/TP 分类号：27-30+34

摘要

利用CATIA软件以经纬密为参数建立了2.5D纤维增强浅交弯联复合材料的参数化有限元模型,在Hyper Mesh专业网格划分工具中划分周期性网格,编写了Fortran程序嵌入周期性边界条件。采用Abaqus软件中VUMAT子程序功能编写了基于Puck准则的材料损伤本构模型,通过渐进损伤分析,得到了机织织物宏观弹性模量以及经向压缩强度、破坏路径,并对破坏结果进行了分析。利用RTM工艺复合成型试件并进行力学测试,实验结果证实了仿真分析的准确性。
        Parametric models of 2.5D fiber reinforced composite material were established with density of warp and weft by Catia software. By the professional tools Hyper Mesh,the mesh was generated. Based upon this,boundary periodical condition was embed using Fortran. The damage constitution model of the composites based on Puck criteria was carried out by VUMAT subroutine in Abaqus. The damage of the bonded interface was simulated by cohesive element. Through the progressive damage analysis,woven structure's module,longitude compressive strength and fracture trace were accessed. The results of simulation were analyzed,and were compared with the experimental results,which were obtained from the specimen using RTM method. The experiments certified that simulation is reasonable.

引文

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