摘要
考虑剪切变形效应的复合材料层合压杆一端固定，而另一端以某一速度运动时的冲击屈曲．控制方程由有限差分法进行求解，并由Ｂ－Ｒ运动准则确定临界缩短量．分析了初始挠度、冲击速度、耦合刚度等因素对临界轴向缩短量的影响．
The impact buckling of a composite bars is investigated when one of its ends moves with a velocity due to axial impact compression. The shear effect is taken into account by treating the bar as a Timoshenko beam. The governing equation is solved by the finite difference method and the critical axial shortness is determined by the B-R criterion. The present attention is mainly focused on the effect of initial deflection,impact velocity and coupled stiffness.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1996年第8期130-133,共4页
Journal of Shanghai Jiaotong University
基金
国家自然科学基金
关键词
冲击屈曲
复合材料
应力波
耦合刚度
压杆
impact buckling
composite bars
stress wave
coupled stiffness
