延性ポリマのクレイズ進展・消滅モデルに対する動的陽解法FEMシミュレーション(S07-2 先端材料II,S07 メゾスケールにおける先進材料の力学と強度・機能評価)

概要

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In order to predict the plastic instability and the failure of polymer subsequent to the ductile large deformation, a macroscopic non-coaxial visco-plastic constitutive equation for polymers was derived, as well as a damage evolution equation expressing the generation and annihilation of craze was proposed in the previous report. In this report, the above system is coded into an explicit finite element method considering an inertial effect that is not considered for a numerical example in the previous report despite of including high strain rate dependence. Consequently, it is evaluated that this system is able to predict large deformation and failure of polymer under the impact deformation condition more realistically than the above previous static simulation.
社団法人日本機械学会の論文
2004-09-04