期刊
COMPOSITE STRUCTURES
卷 108, 期 -, 页码 21-30出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2013.09.001
关键词
PMMA; Windshield; Bird strike; Constitutive model; Finite element method
资金
- 973 Program [2012CB025904]
- NPU Foundation for Fundamental Research [NPU-FFR-JC201236]
- Shaanxi Provincial Natural Science Foundation [2012JQ1003]
- Graduate Starting Seed Fund of Northwestern Polytechnical University [Z2013049]
In this study, a nonlinear viscoelastic constitutive model including the rate and temperature effect is developed to describe the mechanical behavior of polymethylmethacrylate (PMMA) material under high speed impact loading. Based on the updated Lagrangian approach, the incremented form of the constitutive model is deduced using the updated Kirchhoff stress tensors and strain tensors. Then this model is implemented with a user subroutine into the explicit dynamic finite element program LS-DYNA to simulate the dynamic behaviors of PMMA aircraft windshield under high speed bird strike. Numerical results are validated against experimental data and further investigations are carried out to study the influence of environmental temperature, impact location on windshield and bird impact velocity. (C) 2013 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据