期刊论文

Zhang, Chuhan

英文

Engineering Fracture Mechanics

0013-7944

2015

135

113-125

10.1016/j.engfracmech.2014.12.020

Appreciation is expressed to Professors Peter A. Cundall, Jin Feng and Guo Changqing for providing valuable suggestions. Sincere thanks also to Professors Wang Jinting and Xu Yanjie for their discussions. This work was supported by the National Natural Science Foundation of China (Grant Nos. 51479098 , 51239006 and 91215301 ).

本校为其他机构

A complete model of the hammer-transducer-concrete beam system using meso-scale particle elements is proposed. Drop-weight tests are performed with a constant weight and varying drop heights. The numerical results are compared with those from the impact tests in Part I. The results of impact loads, deflections, and strains exhibit satisfactory agreement. The validated model is then used to predict dynamic behavior under higher loading rates. Different fracture modes are observed in the simulation. The strain-fracture energy concept is introduce...