3452 ねじりを受ける不等ピッチスポット溶接薄肉箱型断面部材の応力解析(G03-9 継手・溶接,G03 材料力学)

抄録

In this study, the theoretical analysis method of shearing force through the spot welding, stresses and deformations around the spot welding on irregular pitch spot welded box section beam which receives the torsion was proposed. In addition, bending-torsion finite element for the spot welded member was proposed using local warping got from the proposed method. Stress analysis and torsional rigidity analysis of adjacency spot welded member were carried out using these techniques. Stresses and torsional rigidity of adjacency spot welded member were clarified, while the effectiveness of this technique was shown by comparing with the results of experiment and finite element method.