反復法による非線形粘弾性-粘塑性有限要素法の一提案

概要

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In this paper, we propose an algorithm of FEM for stress analysis of the materials which have viscoelastic viscoplastic chatacteristics such as UHMW-PE. The constitutive equations for plasticity and viscoelasticity derived from the experimental results were used in the algorithm. The new displacement meter made from eddy current sensors, which was made to obtain more accurate test data at low strains, and the constitutive equations derived from the experimental results by the meter were shown. Finally, the comparisons of the numerical results and the experimental results of the load vs. displacement curves for the specimens with side groove were performed. The calculated values were in good agreement with the experimental results. It was confirmed that the algorithm of FEM and the constitutive equations proposed by the authors were valid for stress analysis of nonlinear viscoelastic viscoplastic problems.
社団法人日本機械学会の論文
2000-11-25