Abstract
There is little research on the mechanical characteristics of rock under tensile stress compared with the research on compressive stress. In this study, firstly, direction, length and number of micro cracks were investigated using Inada granite. Secondly, the uniaxial tension test is carried out with the specimen produced in a different direction, an anisotropy of uniaxtial tensile strength, Young's modulus and Poisson's ratio are investigated. In addition, to focus on the effective sectional area of the specimen, considered results on anisotropy of Young's modulus and uniaxial tensile strength were described.
