Fatigue Life Prediction of Open-Hole Steel Plate after Shot Peening Treatment
Bolted connections in steel bridges are subjected to fatigue loading due to continuous vehicular traffic.In most cases,cracks are prone to take place in the vicinity of the bolt hole where there is a geometry discontinuity.If the crack continues to propagate and is left unmaintained,catastrophic failure may occur.Shot peening has recently been extensively applied with the purpose of fatigue life improvement since the workhardening and considerable compressive residual stresses can be introduced as a result of near surface plastic deformation.The effect of surface treatment on the fatigue behaviour of steel components has been highlighted by most recent studies.Despite significant research of shot peening action on the stress characteristics of unnotched specimens,however,its resultant effect on the open-hole details has not been clearly explained.
open-hole fatigue loading shot-peening fracture mechanics life prediction
Zhi-Yu Wang Qing-Yuan Wang Mengqin Cao
Department of Civil Engineering & Mechanics,Institute of Architecture and Environment,Sichuan University,Chengdu,PR China
国际会议
海口
英文
192-193
2018-01-12（万方平台首次上网日期，不代表论文的发表时间）