圆角喷丸铝合金材料疲劳特性的试验研究
魏晓明
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作者单位：西北工业大学力学与土木建筑学院
中文关键字：圆角；喷丸；疲劳寿命
英文关键字：fillet; shot peening; fatigue life
中文摘要：针对不同直径圆角铝合金在喷丸和未喷丸下的疲劳对比试验，试验分析结果表明：圆角喷丸强化试验件的疲劳寿命高于未喷丸的试验件，但分散性增大；圆角半径越大，喷丸件寿命分散性越大。
英文摘要：Fatigue tests were carried out on “shot peened” and “as-prepared” specimens with different fillets to compare their fatigue lives. The experimental and analytical results shows that fatigue lives of shot peened specimens were improved remarkably comparing with that of “as prepared” specimens. However, the dispersity of the fatigue lives associated with the shot peened fillets was increased comparing with that associated with the “as-prepared” specimen. Meanwhile, the dipersity increases with the increase of fillet radius