繰返し負荷を受ける切欠丸棒の詳細および簡易弾塑性解析

概要

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To find some features of the development of cyclic hardening in structural components with areas of strain concentration, detailed and simplified elastic-plastic analyses are performed on an axisymmetric notched bar subjected to axial cyclic loading at the ends. For the detailed analysis, the constitutive model based on the concept of the cyclic nonhardening region is implemented in an incremental finite element method. The model can describe the dependence of cyclic plastic behaviour on the cyclic stress or strain range. The simplified method using the cyclic stress-strain curve as the constitutive relation is applied to the case where the mean value of the cyclic load is nonzero, and its validity is discussed on the basis on the results of the detailed analysis. Moreover, a detailed analysis with accelerated cyclic hardening is performed.
一般社団法人日本機械学会の論文
1986-11-25