Tensile Behavior of Argillite

• Main Authors: Ming-Tzung Yang, 楊明宗
• Other Authors: Jyh-Jong Liao
• Format: Others
• Language: zh-TW
• Published: 1995
• Online Access: http://ndltd.ncl.edu.tw/handle/65538384904287316358

碩士 === 國立交通大學 === 土木工程研究所 === 83 === In order to investigate the tensile behavior of anisotropic rock,a verified tensile gripping equipment is developed; a series of direct tensile test is performed on the core samples of argillite exhibiting transversely isotropic properties ; and the very small lateral strain of the specimens ismeasured by a special arrangement of electric resistance strain gauges, andsemicoductor strain gauges during the testing. The 5 elasticconstants of argillite in tension are calculated from themeasured data of two specimens with different inclination of the foliation planes with respect to the loading direction. The mean elastic constants E= 58.09GPa,v=0.217are obtained from the argillite specimens with 90 degrees inclination angle and E''=47.98GPa,G''=19.66GPa, and v''=0.23 are deduced from the argillite specimens with the inclination angle of 30, 45 and 60 degrees. The final failure plane of specimen occurs along the foliation planes for the specimens with the inclination angle of 0, 15, 30, 45, and 60 degrees, but the failure planeshows a sawtoothed mode for the specimens, which fail partly along and partly cross the foliation planes, with the inclination angle of 75 and 90 degrees.