An explicit expression of stiffness matrix for a 3-dimensional beam made of elastic-plasticmaterial is derived in the paper.
本文推导了材料为理想弹塑性的空间梁单元弹塑性刚度矩阵的显式形式。
2
By studying crash-connection between the sled and the absorber of car crash simulation system, the buffer of elastic-plasticmaterial structure is designed.
以汽车碰撞模拟试验系统中台车与吸能器之间的碰撞接合为例，设计弹-塑性缓冲结构。
3
Cavitation phenomenon may be found in this elastic-plasticmaterial. Formulae between the cavity radius and the stretch were obtained. The critical stretch was given too.