摘要
在层合复合材料横向冲击试验中，用应变片记录层合板表层在冲击过程中的应变响应，根据波的传播理论和连续损伤力学，从波速变化间接测得冲击下材料的损伤及损伤率。通过实验测得玻璃纤维／环氧（ＧＥ）正交层合板的动态损伤阈值。
The response of strain on the face of composite laminates impacted by a projectile was recorded by strain gages.According to the theory of wave propagation and continum damage mechanics,the damage and damage threshold in the glass fiber/epoxy composite laminates were measured by variance of wave speed.It was found that the damage propagation in glass fiber/epoxy composites was faster during tension than during compression.
出处
《国防科技大学学报》
EI
CAS
CSCD
1997年第1期24-27,共4页
Journal of National University of Defense Technology
基金
国家自然科学基金
关键词
层合复合材料
横向冲击
损伤阈值
冲击试验
波速
composite laminates,transverse impact,strain wave,damage threshold,damage propagation
