マルチスケールボイドを有する材料におけるボイドの相互干渉についての研究

概要

論文の詳細を見る
The voids in a material have often important role for the ductile failure. Therefore, it is necessary to control the voids growth by the processing as a mean of improving material properties. As the various size of voids are actually distributed in a damaged material, the interaction among clustering of multi-size voids is also serious concern. In the present paper, alminium sheets which contain multi-size holes have been treated as simple models of damaged materials. The behavior of elasto-plastic defromation and the interference between holes in these models under the uniaxial tensile load were evaluated by FEM analysis. As results of this work, it is shown that the array and the size of holes dominate the appearance of stress and have an influence on the interference between holes.
2010-02-26