黑龙江科技学院学报2013，Vol.23Issue(3)：231-235,5.DOI:10.3969/j.issn.1671-0118.2013.03.004
非球形弹丸超高速撞击充气压力容器碎片云特性数值模拟
Numerical simulation on characteristics of debris clouds produced by non spherical projectiles hypervelocity impact on pressure vessels
摘要
Abstract
Aimed at identifying the characteristics of debris clouds produced by non spherical projectiles hypervelocity impact on pressure vessels at normal angles,this paper introduces the use of SPH (smoothed particle hydrodynamics) methods in AUTODYN and an investigation into characteristics of debris cloud produced by conical projectiles and cylindrical projectiles with different ratio between length and radius hypervelocity impact on pressure vessels with the same mass and velocity by numerical simulation.Effects of the ratio between length and radius of the projectiles affecting on the form of debris cloud,tip particle velocity of debris cloud and radial extension of debris cloud are analyzed.The result shows that the shape of the projectiles and the ratio between length and radius have a greater effect on the dynamic characteristic of debris cloud.Moreover,the increasing ratio between length and radius with cylindrical projectiles results in a decreased diameter of debris cloud,and the damage of debris cloud rises up due to increasing ratio between length and radius both with conical projectiles and cylindrical projectiles.关键词
超高速撞击/非球形弹丸/压力容器/数值模拟/碎片云Key words
hypervelocity impact / non spherical projectiles / pressure vessels / numerical simulation /debris cloud分类
数理科学引用本文复制引用
盖芳芳,于丽艳,于月民..非球形弹丸超高速撞击充气压力容器碎片云特性数值模拟[J].黑龙江科技学院学报,2013,23(3):231-235,5.基金项目
国家自然科学基金项目(11202070) （11202070）
