Experimental Studies on Deformation Behaviors of Rubbery Materials under Cyclic Loading

摘要：

　　Macroscopic cyclic tension-unloading experiments are conducted to investigate the cyclic deformation behaviors of CB filled vulcanized hydrogenated nitrile butadiene rubber at room temperature.In the load-controlled cyclic tension-unloading tests,remarkable Ratcheting occurs,and the effects of the level and rate of cyclic loading on the Ratcheting are also investigated.The ratcheting strain increases with the increasing mean stress and stress amplitude,and more obvious Ratcheting is observed in the cyclic test with load-hold or at lower loading rate.In the displacement-controlled cyclic tension-unloading tests,the responding peak stress of the H-NBR decreases continuously,but the residual strain increases with the increasing number of cycles.Furthermore,the zero-stress hold at the end of cyclic test demonstrates that the residual strain will be recovered partially,which implies that the residual strain of the H-NBR after cyclic test consists of the reversible and irreversible parts.

关键词： Rubbery materials Cyclic loading Ratcheting Residual strain

作者: Yifu Chen Guozheng Kang Ru Tao Han Jiang

作者单位: School of Mechanics and Engineering,Southwest Jiaotong University,Chengdu,Sichuan,610031,P. R. China

会议类型: 国际会议

会议名称: 2016 International Symposium on Structural Integrity，ISSI—2016(2016国际结构完整性研讨会)

会议地点: 天津

会议语种:英文

页码: 106-111

在线出版日期: 2016-05-26（万方平台首次上网日期，不代表论文的发表时间）