Open AccessSimulation of Microscale Features Effect on Mechanical Properties of PTFE-Al Composites
Author(s) -
Juan Liu,
Lijun Tang,
Yuanfeng Zheng,
Haifu Wang
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/562/1/012169
Subject(s) - materials science , composite material , microscale chemistry , gradation , particle (ecology) , dispersion (optics) , polytetrafluoroethylene , composite number , stiffness , particle size , compression (physics) , computer science , optics , computer vision , geology , oceanography , mathematics education , mathematics , physics , chemistry
The compression behavior of polytetrafluoroethylene (PTFE)–aluminum (Al) is studied by the means of the two-dimensional finite element analysis of mesoscale model containing a random dispersion of particles. The results show that for composite materials with a single particle size the strength of the material increases first and then decreases with the increase of the content of metal particles. When the particle content is high the strength of the material can be improved by a reasonable particle gradation. The influence of particle content and size on the strength of particle composites is obtained and theoretical analysis is carried out from the perspective of the formation and evolution of force chains.