摘要
为了考察铝蜂窝夹芯板在爆炸载荷下的动态响应,采用自行设计的冲击摆系统,用激光位移传感器测定了爆炸载荷作用在铝蜂窝夹芯板上的冲量,对夹芯板的变形和失效模式进行了归类和分析,并就芯层的几何尺寸、炸药当量及板厚对其响应的影响进行了系统研究。给出的理论分析结果与实验结果吻合较好。
A large number of experiments were conducted, and the experimental results were reported and discussed. The quantitative results were obtained based on the measurement in the tests by a ballistic pendulum with corresponding sensors, and then the deformation/failure modes of specimens were classified and analyzed systematically. According to the experimental results, a parametric study was carried out, in which the effect of face-sheet and core configurations, such as face-sheet thickness, cell size and foil thickness of the honeycomb, and mass of charge, on the structural response were investigated. Good agreement between the experimental results and theoretical analysis indicates that the proposed method is a powerful approximation method for the dynamic plasticity analysis of a sandwich structure.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
2009年第4期356-360,共5页
Explosion and Shock Waves
基金
国家自然科学基金项目(90716005
10802055
10572100)
山西省自然科学基金项目(2007021005
2009011059-11)
关键词
固体力学
动力响应
爆炸载荷
铝蜂窝夹芯板
变形失效模式
solid mechanics
dynamic response
blast loading
sandwich plate with aluminum honeycombs
deformation and failure modes
