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<p>The effect of residual thermal stresses on mechanical properties of composites with magnesium matrix WE43 reinforced with SiCp particles is studied by the method of finite element simulation. The residual thermal stresses (strains) in the SiCp/WE43 composites are concentrated in the matrix near the interface with the SiCp particles. It is shown that the residual stresses (strains) reduce the mechanical properties of the composites. With increase in the size of the SiCp reinforcing particles, the decrease in the elastic modulus and in the yield strength intensifies and amounts to 14.17 and 4.47% on the average, respectively. The effect of polygonal particles on the reduction of the elastic modulus and of the yield strength of the composites is shown to be higher than that of round particles.</p>

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Investigating the Effect of Residual Thermal Stress on Mechanical Properties in SiCp Particle-Reinforced WE43 Magnesium Matrix Composites by Finite Element Method

  • 期刊论文

  • 发表日期：

    2025年7月1日

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  • Weihan Li,
  • Junfei Xu,
  • Yongjun Feng,
  • Beiyi Ma,
  • Zhiwen Xie,
  • Suying Hu

摘要

The effect of residual thermal stresses on mechanical properties of composites with magnesium matrix WE43 reinforced with SiCp particles is studied by the method of finite element simulation. The residual thermal stresses (strains) in the SiCp/WE43 composites are concentrated in the matrix near the interface with the SiCp particles. It is shown that the residual stresses (strains) reduce the mechanical properties of the composites. With increase in the size of the SiCp reinforcing particles, the decrease in the elastic modulus and in the yield strength intensifies and amounts to 14.17 and 4.47% on the average, respectively. The effect of polygonal particles on the reduction of the elastic modulus and of the yield strength of the composites is shown to be higher than that of round particles.