Fatigue analysis of tension shear spot welds based on material property gradient - 文章详情页

作者：

Wang, R.J. (Wang, R.J..) | Shang, D.G. (Shang, D.G..) (学者：尚德广)

收录：

EI Scopus

摘要：

Fatigue　life　analysis　was　carried　out　on　spot　welds,　taking　into　the　effect　of　welding　process　on　local　metal　mechanical　properties　within　heat　affected　zone.　Considering　the　relationship　between　material　strength　and　cyclic　stress　strain　parameters,　life　prediction　with　Pollard＇s　equation　gave　results　with　errors　in　2　factors,　as　well　as　Barkey＇s　data.　Experimental　results　were　further　studied　with　Manson-Coffin　damage　equation.　Results　showed　that　the　metal　mechanical　properties　gradient　have　implicit　effect　on　crack　initiation　site,　cannot　be　neglected　in　fatigue　life　prediction.

关键词：

Fatigue of materials Heat affected zone Spot welding Strength of materials Stress-strain curves

作者机构：

[ 1 ] [Wang, R.J.]Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650093, China
[ 2 ] [Shang, D.G.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China

通讯作者信息：

[wang, r.j.]faculty of mechanical and electrical engineering, kunming university of science and technology, kunming 650093, china

电子邮件地址：

wrj@kmust.edu.cn

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