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钨合金动态力学性能的三维数值模拟研究

刘海燕 宋卫东 栗建桥

材料工程Issue(6):71-75,5.
材料工程Issue(6):71-75,5.

钨合金动态力学性能的三维数值模拟研究

Three Dimensional Numerical Analysis on Dynamic Mechanical Property of Tungsten Alloys

刘海燕 1宋卫东 2栗建桥2

作者信息

  • 1. 北京理工大学宇航学院,北京100081
  • 2. 北京理工大学爆炸科学与技术国家重点实验室,北京100081
  • 折叠

摘要

Abstract

Dynamic behavior of tungsten alloys under impact loadings was investigated by using numerical simulations. Three dimensional finite element unit cell models with typical micro-structure of tungsten alloys were established. The dynamic mechanical properties of tungsten alloys under tensile loadings were investigated by numerical simulations. The effect of strain rates on the mechanical properties was analyzed. The stress and strain contours of the unit cell model at different strain rates were given. The reliability of the finite element models was verified through the comparison with experimental results.

关键词

钨合金/动态力学性能/微观结构/数值模拟

Key words

tungsten alloy/ dynamic mechanical property/ micro-structure (numerical simulation

分类

数理科学

引用本文复制引用

刘海燕,宋卫东,栗建桥..钨合金动态力学性能的三维数值模拟研究[J].材料工程,2012,(6):71-75,5.

基金项目

国家自然科学基金(91016013 ()

10772024) ()

国家重点基础研究发展计划(2010CB8327006) (2010CB8327006)

新世纪优秀人才计划资助项目 ()

材料工程

OA北大核心CSCDCSTPCD

1001-4381

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