Comparison of Fatigue Life Behavior between Two Different Composite Materialssubjected to Shot Peening at Different Times | ||
| Al-Khwarizmi Engineering Journal | ||
| Article 1, Volume 10, Issue 3, September 2014, Pages 1-12 | ||
| Authors | ||
| Mahdi N. M. Shareef; Ahmed N. Al-Khazraji | ||
| Abstract | ||
| This paper investigated the fatigue life behavior of two composite materials subjected to different times of shot peening (2, 4 and 6 min).The first material prepared from unsaturated polyester with E-glass reinforcement by 33% volume fraction. While, the second one was prepared from unsaturated polyester with aluminum powder by2.5% volume fraction. The experimental results showed that the improvement in endurance limit was obtained (for the first material) at 2, 4 and 6 min shot peening times where the percentage of maximum improvement was 25% at shot peening time of 6 min. While, the endurance limit of the second material decreased at shot peening times of 2, 4 and 6 min where the percentage of maximum reduction was 29 % at shot peening time of 6 min. The verification of experimental results was done using ANSYS.14 workbench with a good agreement in behavior between the experimental and numerical. | ||
| Keywords | ||
| fatigue life; Endurance Limit; Composite Materials; Shot Peening Time; Polymer Matrix Composites | ||
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