507 中央に偏平孔を有する平板の有限要素解析(GS-15 非弾性・塑性(2))  [in Japanese] 507 The Finite Element Analysis of Thin Plate with a Central Flat Hole  [in Japanese]

The authors study the numerical simulation of elasto-plastic problem under plane stress by the finite element method. Calculation is conducted by making use of commercial based software LUSAS . Numerical examples are shown for the thin plate with a central flat hole subjected to proportional loading and cyclic loading. Results are compared and discussed due to the differences of definition of yield points, approximation of stress-strain diagrams and loading paths.