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Indexed by:期刊论文

Date of Publication:2014-02-01

Journal:JOURNAL OF REINFORCED PLASTICS AND COMPOSITES

Included Journals:SCIE、EI、Scopus

Volume:33

Issue:4

Page Number:342-349

ISSN No.:0731-6844

Key Words:negative Poisson's ratio; Vehicle body; enhanced strength; cellular structure

Abstract:A new cellular vehicle body structure (Negative Poisson's Ratio vehicle body structure) with negative Poisson's ratio and enhanced strength is presented in this study. Due to high shear strength and Young's modulus increment rate, the vehicle body made of this structure shows lower mass and higher performance. By developing a theoretical analytical model and a finite element analysis (FEA) model of Negative Poisson's Ratio (NPR) structure cell, the effect of relative density and topological structure on the linear and nonlinear properties is studied. A compressive experiment using a 3*3 NPR structure sample made of ABS material was developed. The experimental results concluded that NPR structure possesses the negative Poisson's (between 0 and -1) and enhanced strength under in-plane compression, which provide theoretical significance on developing lightweight vehicle body.