摘要
研究了计及横向剪切的复合材料层合扁球壳在矩形脉冲载荷作用下的非线性动力屈曲问题;采用Galerkin方法得到以顶点挠度表达的动力响应方程,并用Runge-Kutta方法进行数值求解,应用Budiansky-Roth准则(简称B-R准则)确定冲击屈曲的临界荷载;讨论了壳体几何尺寸和物理参数对复合材料层合扁球壳冲击屈曲的影响;数值算例表明,该方法是可行的.
The nonlinear impact buckling of laminated composite shallow spherical shells including transverse shear deformation is investigated. The nonlinear dynamic responsive equation is obtained by Galerkin method and solved by Runge-Kutta method. Budiansky-Roth motion criterion expressed by peak displacement is adopted to define the critical impact buckling load. The effects of geometric and physical parameter on impact buckling of laminated composite shallow spherical shells are discussed. Numerical results show feasibility of the Galerkin method.
出处
《固体力学学报》
CAS
CSCD
北大核心
2006年第3期315-318,共4页
Chinese Journal of Solid Mechanics
关键词
复合材料层合扁球壳
矩形脉冲
冲击屈曲
laminated composite shallow spherical shells, rectangular pulse, impact buckling
