Influence of Shielding Gas Composition on the Properties of Flux-Cored Arc Welds of Plain Carbon Steel Validation of the Contour Method Considering the In-plane Displacements at the Cut Surface Prediction of Residual Stresses Produced by Low Transformation Temperature Weld Wires and its Validation Using Contour Method Application of Low Transformation Temperature (LTT) Material to Weld Joint for Improvement of Residual Stress and its Measurement Using Contour Method Influence of Specimen Size on Welding Residual Stress and Inherent Deformation (in Japanese) Prediction of residual stresses induced by low transformation temperature weld wires and its validation using the contour method Numerical Evaluation of Stress Intensity Factors of Three-dimensional Surface Cracks in Welded Joints Using the Superposition Method Calculation of SIFs along a 3-D Crack Front with the Interaction Integral Method Using a Non-Uniform Residual Stress Field Numerical Estimation on Stress Intensity Factors for Surface Cracks in a Welding Residual Stress Field Evaluation of stress intensity factor for a surface cracked butt welded joint based on real welding residual stress