Fatigue Analysis of Spot Weldment in Cold Rolled Steel and High Strength Steel Using FEM ICAT2005/022

Authors

Eunok Lee - Department of Mechanical & Aerospace System Engineering, Chonbuk National University
Kyoosang Kim - Department of Mechanical & Aerospace System Engineering, Chonbuk National University
Hyosun Yu - Department of Mechanical & Aerospace System Engineering, Chonbuk National University
Koungsuk Kim - Department of Mechanical Engineering, Chosun University
Sungmo Yang* - Department of Mechanical & Aerospace System Engineering, Chonbuk National University

Abstract

Keywords

Finite element method, Cold rolled steel(EZNCEN), High strength steel(HS40R), Spot weldment, Fatigue life

Abstract

High strength steel was used in vehicle bodies when satisfying environmental regulations and improving fuel ratios. Vehicle body sheets became thinner, stronger, and more functional, but it was difficult to meet the design standards of spot welding in cold rolled steel and high strength steel. This paper presents a method for determining the fatigue life of cold rolled steel sheets EZNCEN and high strength steel sheets HS40R spot welding used for vehicles. The fatigue life of the spot welding can be obtained from the MSC/FATIGUE using the finite element method.

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