Low-velocity impact characteristics of carbon fiber composites lattice core sandwich structures
Since composite sandwich structures are susceptible to low-velocity impact damage, a thorough characterization of the loading and damage process during impact is important. In the present paper, the low-velocity impact response of carbon fiber composites lattice structures are investigated by experimental and numerical methods. Impact tests on composite plates are performed using an instrumented drop-weight machine (Instron 9250HV) and a new damage mode is observed. A three-dimensional finite element model is built by ABAQUS/Explicit and user subroutine (VUMAT) to predict the peak loading and simulate the complicated damage problem. It can be found that numerical predictions coincide well with experimental results.
low-velocity impact composites lattice core damage mode
Shi-Xun Wang Lin-Zhi Wu Li Ma
Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China
国际会议
青岛
英文
127-130
2009-10-09（万方平台首次上网日期，不代表论文的发表时间）