摘要
探讨了船舶板梁组合结构的冲击动力响应现象，采用非线性有限元方法，在经典刚塑性近似理论的基础上，考虑了材料非线性、大变形效应和弹性效应，研究了在质量冲击载荷下结构从弹塑性变形到结构撕裂破坏的动态力学过程．对典型船体结构部件的破损动态过程和能量吸收等进行了数值模拟和研讨，并给出了一个典型船舶碰撞算例．
A dynamic analysis method of plate beam combined structure of ship under impact load is described in this paper.Non linear FEM is adopted to study the dynamic progress of structure from elasticplastic deformation to collapse,in which the non linearity of large deformation and plastic effects are considered on the basis of perfectly plastic theory.The Wilson θ method cooperated with a force incremental iterative procedure is employed for dynamic simulation.Examples of impact collapse of a single beam and ship side structure are presented.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1997年第9期122-126,共5页
Journal of Shanghai Jiaotong University
