摘要
通过相似理论建立了多层混凝土/土复合介质内爆炸的毁伤效应的缩尺模型;同时运用LS-DYNA进行了足尺模型和缩尺模型的毁伤效应数值模拟;结果表明,缩尺模型与足尺模型毁伤效果的主要特征参量,如毁伤面积、隆起高度和速度有较好的相似性;并在数值模拟的基础上讨论了缩尺比例的影响。从而说明在一定条件下,利用缩尺模型试验进行混凝土复合靶内爆炸的毁伤效应研究是可行的。
A scale model for damage effect of explosion in multi-layer medium which contains concrete and soil was estab-lished by the similarity theory. The charge explosion in the multi-layer medium was simulated by LS-DYNA code for both the full-scale model and Scale model. The simulation results show that the main characteristic parameters such as damage area, hunch height and hunch velocity are all similar between the full-scale and scale models, and the effect of the scale was also discussed based on the numerical simulation. It is feasible to study the damage of concrete composite medium subjected to explosion by scale mode experiment.
出处
《弹箭与制导学报》
CSCD
北大核心
2008年第2期93-96,共4页
Journal of Projectiles,Rockets,Missiles and Guidance
基金
国防科学技术大学校预研基金资助
关键词
毁伤效应
混凝土复合介质
相似理论
缩尺模型
数值模拟
damage effect
concrete composite medium
similarity
scale model
numerical simulation
