1927 レーザー照射を受ける薄板の熱弾塑性解析 : 塑性領域の外部に2点目の照射を行う場合(S19-3 構造物の変形強度解析,S19 材料の非弾性変形とそのモデル化)

概要

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In this paper a research problem for investigating the elasto-plastic behavior when a laser beam was irradiated to the surface of a thin metal plate with cooling its backside is described. When the plate is cooled down until the room temperature after the first irradiation, the plastic deformation spreads at the neighborhood of the first irradiated position and the residual stress distributes over the plate. Hence, the distributions of internal forces at the second irradiation become very complicated, and the conditions for re-yielding will closely depend on the position of re-irradiation. In this study, we investigate the relation between the generalized internal force arriving at re-yielding and the position of the second irradiation. Especially, we reveal the feature of the inside area and the outside area of the plastic region which occurred at the first irradiation.
一般社団法人日本機械学会の論文
2005-09-18