A Study on the Cracked Specimen for Biaxial Tensile Loading Test
In the recent years, the studies on the mechanical behaviors of various materials subjected to biaxial loading have been worked since they are more complicated and intrinsically different from those under the simple uniaxial condition. The cruciform specimen without any slots has been commonly used for the goal so far. We prepare improved biaxial specimen with slots and make sure its validity by means of finite element analysis and photoelastic experiment. Even though the equal load biaxiality was applied to the specimens, as the results, we found that the stress biaxiality ratios in central region of specimen differ according to the position from the center of them, the specimen with slots in the arms is more effective to make state stress uniform than the specimen without slot.
Soon-Bok Lee and Yun-Jae Kim
D. C. Shin et al., "A Study on the Cracked Specimen for Biaxial Tensile Loading Test", Key Engineering Materials, Vols. 326-328, pp. 1331-1334, 2006