LI Piao, CHEN Meixia, LUO Qi. Research on the Equivalent Modulus of Elasticity ofTransverse Reinforced Core Materials[J]. Chinese Journal of Ship Research, 2013, 8(2): 65-72. DOI: 10.3969/j.issn.1673-3185.2013.02.012
Citation: LI Piao, CHEN Meixia, LUO Qi. Research on the Equivalent Modulus of Elasticity ofTransverse Reinforced Core Materials[J]. Chinese Journal of Ship Research, 2013, 8(2): 65-72. DOI: 10.3969/j.issn.1673-3185.2013.02.012

Research on the Equivalent Modulus of Elasticity ofTransverse Reinforced Core Materials

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  • Corresponding author:

    CHEN Meixia

  • Received Date: May 07, 2012
  • Revised Date: August 12, 2012
© 2013 The Authors. Published by Editorial Office of Chinese Journal of Ship Research. Creative Commons License
This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • In order to investigate the equivalent modulus of elasticity for the transverse reinforced core material,the Mori-Tanaka method,based on the Eshelby theory,is first applied to obtain the equivalent modulus 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 reveals 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 Poisson ratio can be easily affected by changing parameters,yet less influence is observed for the in-plane Young modulus and the transverse Poisson ratio.
  • [1]
    ZHAO Y H,WENG G J. Effective elastic moduli of ribbon-reinforced composites[J]. Journal of Applied Mechanics,1990,57(1):158-167.
    [2]
    刘文辉,张新明,张淳源. 微观结构对复合材料弹性有效性能的影响[J].工程力学,2005,22(S1):16-20.LIU Wenhui,ZHANG Xinming,ZHANG Chunyuan.Microstructure effect on elastic properties of composites
    [J]. Engineering Mechanics,2005,22(s1):16-20.
    [3]
    王兵,冯吉才,李庆飞,等. 纤维柱增强泡沫夹芯的等效力学性能研究[J]. 哈尔滨工业大学学报,2012,44(3):29-33.WANG Bing,FENG Jicai,LI Qingfei,et al. Study onthe effective mechanical properties of foam core sandwich structure reinforced by fiber composite columns
    [J]. Journal of Harbin Institute of Technology,2012,44(3):29-33.
    [4]
    雷友锋,魏德明,高德平. 细观力学有限元法预测复合材料宏观有效弹性模量[J]. 燃气涡轮试验与研究,2003,16(3):11-15,18.LEI Youfeng,WEI Deming,GAO Deping. Predicting macro scopic effective elastic moduli of composites by micro-mechanics FEM[J]. Gas Turbine Experiment and Research,2003,16(3):11-15,18.
    [5]
    刘振国,冯志海. 三维四向编织复合材料弹性模量数值预报[J]. 北京航空航天大学学报,2000,26(2):182-185.LIU Zhenguo,FENG Zhihai. Numerical prediction of moduli of 3-D and 4-step braided composites[J]. Journal of Beijing University of Aeronautics and Astronautics,2000,26(2):182-185.
    [6]
    ESHELBY J D. The determination of the elastic field ofan ellipsoidal inclusion and related problems[J]. Proceedings of the Royal Society,1957,241:376-396.
    [7]
    ESHELBY J D. The elastic field outside an ellipsoidal inclusion[J]. Proceedings of the Royal Society,1959,243:561-569.
    [8]
    杜善义,王彪. 复合材料细观力学[M]. 北京:科学出版社,1998.
    [9]
    MORI T,TANAKA K. Average stress in matrix and average elastic energy of the materials with misfitting inclusions[J].Acta Metallurgica,1973,21(5):571-574.
    [10]
    SUN C T,VAIDYA R S. Prediction of composite properties from a representative volume element[J]. Composites Science and Technology,1996,56(2) :171-179.

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