凝灰岩が巨視的破壊に至るまでの微視的な破壊挙動に関する考察

概要

論文の詳細を見る
In this study, the behavior of the microscopic failure prior to the macroscopic failure for Tuff is examined. Firstly, uni-axial tension tests were carried out and stress-strain characteristics were investigated. It was found that the anisotropy was small for the strain in the tensile fracture, while the anisotropy was remarkable for the tensile strength. Secondly, uni-axial compression tests were carried out and various physical properties of the macroscopic failure were examined. It was found that the anisotropy was small for the strain in the compressive failure, while the anisotropy was remarkable for the compressive strength, Youngs modulus and Poissons ratio.Inelastic strain was defined as a part of circumferential strain. At the point of maximum volumetric strain, it was found that inelastic strain almost equals tensile failure strain obtained by the uni-axial tension test. From these results, it is estimated that microscopic failure is caused by circumferential direction.
社団法人資源・素材学会の論文
2006-02-25