Study on the elastic property of honeycomb aluminum based on the generalized method of micromechanics

doi:10.19936/j.cnki.2096-8000.20211128.004

Abstract

Abstract: With the rapid development of all kinds of new composite materials, there are more and more methods to study the material properties of complex structures. Based on the method of composite micromechanics, the concept of representative volume element is extended, and the elastic parameters of honeycomb aluminum are numerically studied. 135 RVE finite element models of honeycomb aluminum with different geometric parameters are built and calculated. The fitting formula of elastic modulus was obtained by multiple regression analysis. At the same time, a statistical method is proposed to analyze the finite element calculation results, obtain the general law of complex material properties, predict the material properties with complex structure, and guide the application of materials in the engineering field. The feasibility of this method is verified by SHPB experiment at a certain strain rate.

Key words: honeycomb aluminum, RVE, FEM, material properties, multiple regression, composites

CLC Number:

TB332

YANG Ran, ZHANG Ji-gang, SHI Cheng-long, YAN Qing-feng, ZHAO Di. Study on the elastic property of honeycomb aluminum based on the generalized method of micromechanics[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(11): 26-30.

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