30 有限要素解析による天然ゴム系積層ゴム支承のせん断引張特性 : 積層ゴムのせん断引張解析手法の提案

概要

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This study aims to simulate shear-tensile behavior of natural rubber laminated bearings by finite element analysis (FEA). Rubber in FEA elements is modeled by the combination of hyperelasticity and air-expanded model in order to express voids which are observed in tensile rupture of rubber. Analytical results are as follows: 1. Analysis can simulate the shear-tensile behaviors in spite of rubber type, shape and offset values differences focused in this paper. 2. Analysis can represent the outward deformation of rubber. Farther investigation is necessary for adaptations of expanded model and details. It is necessary for more advanced analysis that the void area and Poisson's ratio are to be varied following strain level of rubber. 3. It is considered that more researches are needed for investigating the mechanism of void occurrence, observing period, amount of number and place of voids.
一般社団法人日本建築学会の論文
2005-03-20