太原理工大学学报2005，Vol.36Issue(6)：669-672,4.
冲击载荷作用下弹塑性圆板动力反直观行为的研究
The Research on Anomalous Response of Elasto-plastic Circular Plates due to Pulse Loading
摘要
Abstract
Anomalous dynamic response means that final deflection of the structures may be in the direction opposite that of the load rather than in its direction. In this paper the anomalous behaviors of circular plates subjected to short transverse pulse load is studied. The plate is assumed fixed-pinned along the boundary. 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 effects 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.关键词
anomalous response/elasto-plastic circular plates/numerical analysisKey words
anomalous response/elasto-plastic circular plates/numerical analysis分类
数理科学引用本文复制引用
吴桂英,秦冬祺,杨桂通..冲击载荷作用下弹塑性圆板动力反直观行为的研究[J].太原理工大学学报,2005,36(6):669-672,4.基金项目
National Natural Science Foundation of China (10172063) （10172063）
Shanxi Province Natural Sicence Foundation (20041004) （20041004）
