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横向增强芯材的等效弹性模量研究

李飘 陈美霞 罗琦

中国舰船研究Issue(2):65-72,8.
中国舰船研究Issue(2):65-72,8.DOI:10.3969/j.issn.1673-3185.2013.02.012

横向增强芯材的等效弹性模量研究

Research on the Equivalent Modulus of Elasticity of Transverse Reinforced Core Materials

李飘 1陈美霞 1罗琦1

作者信息

  • 1. 华中科技大学 船舶与海洋工程学院,湖北 武汉 430074
  • 折叠

摘要

Abstract

  In order to investigate the equivalent modulus of elasticity for the transverse reinforced core ma⁃terial,the Mori-Tanaka method,based on the Eshelby theory,is first applied to obtain the equivalent mod⁃ulus of elasticity of the core material embedded in a composite sandwich plate. The numerical simulation is then conducted via the ANSYS code package to obtain the equivalent modulus of elasticity for a unit cell, and the simulation results are compared with those calculated with the Mori-Tanaka method,which re⁃veals a difference less than 5%. On this premise,further research is conducted to investigate the effects of variable Young modulus and related matrix sizes on the equivalent modulus of elasticity of the composite core material. The results indicate that the transverse effective elastic Young modulus and in-plane Pois⁃son ratio can be easily affected by changing parameters,yet less influence is observed for the in-plane Young modulus and the transverse Poisson ratio.

关键词

等效弹性模量/Eshelby 等效夹杂原理/Mori-Tanaka 方法/横向增强/复合材料/有限元

Key words

equivalent modulus of elasticity/Eshelby theory/Mori-Tanaka method/transverse rein-forced/composite/FEM

分类

交通工程

引用本文复制引用

李飘,陈美霞,罗琦..横向增强芯材的等效弹性模量研究[J].中国舰船研究,2013,(2):65-72,8.

基金项目

国家自然科学基金资助项目(51179071);中央高校基本科研业务费资助项目 ()

中国舰船研究

OACSTPCD

1673-3185

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