第二部門：計算力学（C）

[S02C-06] The Procedure for Identifying Material Parameters of Hyperelasticity by Considering Stress State in the Structure

*Tomoyuki IWATA¹, Takahiro YAMADA¹, Motohide FUJIWARA², Tomoaki IHATA², Kazuya OKADA² (1. Yokohama National University, 2. Graduated from Yokohama National University)

Keywords:Material Parameter, Material Test, Hyperelasticity

Regarding the mechanical properties of hyperelastic materials such as rubber materials, there are cases in which stress conditions during the actual operation of various structures cannot be predicted by material tests based on conventional basic deformation patterns. In this study, we propose a rational procedure for identifying material parameters using material tests that are defined by simulating the stress state of actual structure, and verify the general-purpose effectiveness of the method using a commercial FEA solver code.