摘要
The anomalous nonlinear elastic, perfectly plastic response behaviors of circular plate subjected to short transverse pulse load is studied. The plate is assumed fixed-pin along the boundary. 'Anomalous' here means that the final deflection may be in the direction opposite that of the load. It has been found by detailed numerical analyses that there exists anomalous response in some narrow loading ranges, so called slots. By further calculations it is shown that this special dynamic behavior is related to coupling affects of internal forces and large plastic deformation after removal loading. Further plastic dissipation will be lead to anomalous dynamic response. This phenomena could be considered as the coupling of the geometry nonlinearity, material nonlinearity,elastic effects and the irrecoverable of the plastic deformation.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2004年第z2期14-18,共5页
Journal of Shanghai Jiaotong University
基金
This project is supported by National Natural Science Foundation(10172063) of China and Shanxi Province Natural Science Foundation(20041004).