Numerical Testing for Dynamic Fracture of Three Point Bending Cement Mortar Specimen with Off-center Edge-crack

摘要

In this paper, RFPA - dynamic numerical simulation system was adopted to simulate the entire process of the three-point bending specimen with off-center edge-crack propagation to the specimen macroscopic crack which under the dynamic load function. And showed the whole process of the cement mortar specimen crack propagation which under the dynamic load function, as well as the whole field stress distribution picture, and has carried on analysis the specimen destruction process, has pointed out the influence of the no dimension quantity a/L change to crack expansion path and the destruction form.