薄い帯板の面内塑性曲げについて

概要

論文の詳細を見る
The problem of pure bending of a thin strip in its plane is treated as one of generalized plane stress for a strainhardening rigid plastic material. The method is based upon the deformation theory of plasticity, and the material is assumed to follow the yield condition of von Mises. The solution can be obtained solving a basic non-linear differential equation numerically. Especially for the rigid perfectly plastic material, a heuristic solution is found in closed form. Some numerical results are presented and an approximate expressions for stress and strain distributions are derived. These results are compared with experimental measurements.Consequently, it is shown that the effect of any strainhardening characteristic on the strain distribution is very small, but is large on the stress distribution and the foregoing analysis is useful for practical purpose.
社団法人日本船舶海洋工学会の論文