摘要
计及结构的几何与材料非线性，利用梁、膜单元的切线刚度矩阵和位移增量迭代方法，研究了工字梁剖面塑性化过程以及简单梁、交叉梁和板梁组合结构在静横向载荷下的弹塑性变形、卸载和撕裂过程，通过计算机数值模拟，对若干典型问题进行了计算分析，观察了能量吸收和刚度与变形的关系，以便为船舶极限强度及碰撞内部机理研究提供分析工具．
The progressive collapse of the single beam, grillage and plate-beam structure, subjected to transverse load, has been studied, using tangential stiffness matrices and the displacement increase iteration method. Both the geometrical and material nonlinearities are taken into account. Some typical examples have been studied in aid of computer simulation and the relationships between force, energy, stiffness and deformation have been achieved. The method and results here can be used for the analysis of ship collision and ship ultimate strength.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1996年第3期48-55,共8页
Journal of Shanghai Jiaotong University
