ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

Laser shock peening is a technique similar to shot peening. Laser shock peening imparts compressive residual stresses in materials to improve the fatigue resistance. During a laser shock peening event, pressure well above the dynamic yield strength of the material is imparted on the target within a microsecond. The severity of the loading causes local plastic deformation, which ultimately results in the development of the favorable residual stresses. Finite element analysis technique was applied to predict the residual stress induced from laser shock peening. The comparison between the simulation and experimental results was carried out and the model was validated subsequently. The results showed that the numerical simulation on laser shock peening was effective for the crankshaft design and parameters optimization.