The influence of void distribution on transverse mechanical properties of unidirectional composites

The influence of void distribution on the transverse mechanical properties of unidirectional composites is studied. Firstly, using Matlab to obtain composites microscopic voids radius distribution. Secondly, based on void radius distribution, the representative volume element (RVE) of composites mic...

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Bibliographic Details
Published in2017 8th International Conference on Mechanical and Aerospace Engineering (ICMAE) pp. 209 - 214
Main Authors Bo Li, Meiying Zhao, Xiaopeng Wan
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2017
Subjects
composites
damage
Finite element analysis
Laminates
MATLAB
RVE
Scanning electron microscopy
Shape
Stress
transverse mechanical properties
void
void distribution
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ISBN1538633051
9781538633052
DOI10.1109/ICMAE.2017.8038644

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Summary:The influence of void distribution on the transverse mechanical properties of unidirectional composites is studied. Firstly, using Matlab to obtain composites microscopic voids radius distribution. Secondly, based on void radius distribution, the representative volume element (RVE) of composites microstructure with random fiber, matrix, and random voids are generated by random algorithm. Finally, considering the elasticity-plasticity of matrix and bilinear traction-separation law for interface, the effect of void distribution on transverse behavior of unidirectional composites is simulated by the finite element analysis. It is found that the influence of the void distribution on transverse modulus, transverse tension strength and transverse compressive strength is small relatively, but the effect on the damage initiation, damage evolution and final damage of composite microstructure under transverse tension is large relatively.
ISBN:1538633051
9781538633052
DOI:10.1109/ICMAE.2017.8038644