Dynamic Response Analysis of Bird Strike on Aircraft Windshield Based on Damage-modified Nonlinear Viscoelastic Constitutive Relation

查看全文 作　　者：Wang Xinjun Feng Zhenzhou Wang Fusheng Yue [1]Zhufeng

机构地区：[1]Department of Engineering Mechanics, Northwestern Polytechnical University, Xi 'an 710072, China

出　　处：《Chinese Journal of Aeronautics》索引2007年第20卷第6期,共7页

基　　金：National Natural Science Foundation of China (50375124); Hi-tech Research and Development Program of China (2006AA04Z401) 摘　　要：Damage-modified nonlinear viscoelastic constitutive equation and failure criterion are introduced and the three-dimensional incremental forms are deduced based on the updated Lagrangian approach. A simple tensile test model and a split Hopkinson pressure bar model are built to verify the accuracy of the subroutine implemented within the non-linear finite element program LS-DYNA. A numerical model of bird strike on windshield is established to study the responses of windshield under three different bird velocities at three sites. The bird is represented by a cylinder with a hemisphere at each end and the contact-impact coupling algorithm is used in this study. It is found that the implemented subroutine can properly describe the mechanical behavior of polymethyl methacrylate under low and high strain rates and large deformation, and can be used validly. 关键词：鸟类非线性粘弹性构成物质子程序挡风玻璃飞机事故

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Dynamic Response Analysis of Bird Strike on Aircraft Windshield Based on Damage-modified Nonlinear Viscoelastic Constitutive Relation

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引证文献(8)

耦合文献(148)

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