摘要
复合材料负泊松比结构实现了材料特性和结构特性的叠加,其力学特性值得关注.建立碳纤维复合材料的各向异性本构模型,并推导层合板弹性力学计算方法.针对内凹六边形负泊松比单层结构,通过有限元软件开展拉压力学的数值研究.结果表明:横向和垂向的拉压加载情况都体现出交叉承载的特性,且应力在棱边集中,然后发生破坏;拉压条件下都实现了负泊松比效应.
The negative Poisson s ratio structure with composite materials realizes the superposition of material and structural characteristics,and its mechanical characteristics deserve attention.The anisotropic constitutive model of carbon fiber composites was established,and the calculation method of elastic mechanics of laminated plates was derived.The numerical study of tension and compression was carried out by finite element software for the concave hexagonal negative Poisson s ratio single-layer structure.The results show that the transverse and vertical tension and compression loading shows the characteristics of cross-load,and the stress is concentrated at the edge and then destroyed,the negative Poisson s ratio effect is realized under the condition of tension and compression.
作者
赵昌方
朱宏伟
仲健林
任杰
马威
Zhao Changfang;Zhu Hongwei;Zhong Jianlin;Ren Jie;Ma Wei(School of Mechanical Engineering,Nanjing University of Science&Technology,Nanjing 210094,Jiangsu,China;Jiangxi Hongdu Aviation Industry Group Company Ltd,Nanchang 330024,Jiangxi,China)
出处
《江苏师范大学学报（自然科学版）》
CAS
2020年第4期61-64,共4页
Journal of Jiangsu Normal University：Natural Science Edition
基金
国家自然科学基金资助项目(12002169)
江苏省自然科学基金资助项目(BK20170837)。
关键词
负泊松比结构
复合材料
碳纤维
拉压力学
有限元分析
negative Poisson s ratio structure
composite material
carbon fiber
tension and compression mechanics
finite element analysis
