Evaluation of weld residual stress field by the deep hole drilling technique based on three-dimensional elasto-plasticity theory

抄録

In order to assess the applicability of the 3DP-DHD technique, which could consider the effects of three-dimensional nature and plastic deformation around reference hole, as the measuring method of welding residual stress, the technique was applied to measurement of residual stress in multi-pass weld joint. In addition, evaluation results were compared with those obtained by the stress relief technique and finite element analysis. As a result, evaluation results obtained by the 3DP-DHD technique were in good agreement with those of other techniques generally.