摘要
综合Johnson Cook本构方程和Wierzbicki叠缩模型,用角度增量叠缩法对受冲击载荷作用的玻璃钢-金属双层圆柱壳的变形能进行了计算分析。计算了在不同玻璃钢与金属厚度比和不同纤维辅设方向下的玻璃钢-金属双层圆柱壳的变形能,以及玻璃钢-金属双层圆柱壳的能量位移曲线与瞬时载荷位移曲线。结果表明玻璃钢与金属厚度比变化以及玻璃钢的纤维辅设方向对变形能有显著的影响。
Based on the Johnson Cook constitutive equations and Wierzbicki fold model, the deformation energy of glass fiber-metal double cylindrical shell under impact load was calculated and analyzed by angle increment fold method in this paper. Deformation energy of cylindrical shell with different glass fiber reinforced plastic and metal thickness ratios or different fiber auxiliary set direction were calculated. Energy-displacement curve and instantaneous load-displacement curve of cylindrical shell were also gained. The results showed that change of glass fiber reinforced plastic and metal thickness ratio and fiber auxiliary set direction had significant influence to buffer effect.
出处
《上海航天》
2015年第4期17-20,25,共5页
Aerospace Shanghai
