Finite Element Analysis of the Effect of Residual Stress on Mechanical Behavior of Welded Plates

Byeong Choon Goo; Seung Yong Yang

doi:10.4028/www.scientific.net/MSF.580-582.605

Paper Titles

Effect of Weld HAZ Softening on Tensile Strength of Welded Joint with Weld HAZ Softening
p.589

Fatigue Crack Growth Characteristics in Dissimilar Weld Metal Joint
p.593

Strain-Induced Martensitic Phase Transformation by Low-Cycle Fatigue in AISI 316L Stainless Steel
p.597

A Study for the Fatigue Failure Mode Assessment of Fillet Weldments
p.601

Finite Element Analysis of the Effect of Residual Stress on Mechanical Behavior of Welded Plates
p.605

Optional Correlation Function Method in Kriging for Stochastic Optimal Design
p.609

Characteristics of the Static and Dynamic Behavior of Steel Piles with a Welded Joint
p.613

Analysis of Fatigue Life of SPR (Self-Piercing Riveting) Jointed Various Specimens Using FEM
p.617

A Study on the Development of Mach Peening for Prolonging Fatigue Life of Machine Structural Alloy Steel
p.621

HomeMaterials Science ForumMaterials Science Forum Vols. 580-582Finite Element Analysis of the Effect of Residual...

Finite Element Analysis of the Effect of Residual Stress on Mechanical Behavior of Welded Plates

Abstract:

Residual stresses play an important role in the mechanical behavior of steels and welded structures. To examine the effect of residual stresses on tensile behavior and fatigue, residual stresses in the specimens were generated by welding. Experimental stress-strain curves of the specimens with/without residual stresses were obtained and compared to simulated curves obtained by the finite element analysis. The two results are in a good agreement. Finally, to study the relaxation of the residual stresses during fatigue crack propagation, we carried out fatigue crack propagation analysis by a 3-D cohesive zone model. Initial welding residual stresses decrease as the number of cycles increases.