SPRINGBACK BEHAVIOR OF METAL SEALING O-RINGS USED TO PRESSURE VESSEL AND THE SPRINGBACK PREDICTION

摘要：

Based on a series of tests and elastic-plastic finite element analysis (EPFEA)with contact elements,the springback behavior of O-ring specimens of 60Si2Mn and SS304 at room temperature was investigated.The results show that,in a larger range of flattening ratio d/D for a tube specimen of O-ring where d and D are flattening displacement and outer diameter of the tube respectively,there exists linear relation between the springback ratio H/D and geometric dimension ratio D/t where H and t are springback and the thickness of the specimen respectively.To predict springback of O-ring,a new model named as TSM was presented and its predicting results for the specimens of the two metals have better consistence with the experimental results.

关键词： 304 stainless steel 60Si2Mn O-ring springback prediction model flattening experiment FEA Sealing

作者: L.X.Cai H.J.Chen

作者单位: Department of Applied Mechanics and Engineering,Southwest Jiaotong University,Chengdu,Sichuan 610031,China

会议类型: 国际会议

会议名称: 第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)

会议地点: 安徽黄山

会议语种:英文

页码: 447-450

在线出版日期: 2008-06-03（万方平台首次上网日期，不代表论文的发表时间）