常温拉伸应力松弛试验初始试验力保持时间的研究  

Significance and Role of Initial Test Load Holding Time in Tensile Stress Relaxation Test at Room Temperature for the Pre-stressed Rolled Steel

作　　者：于明琪 

机构地区：[1]天津钢厂钢研所,天津300182

出　　处：《物理测试》1997年第5期17-19,共3页Physics Examination and Testing

摘　　要：本文探讨了预应力钢材常温拉伸应力松弛试验中,初始试验力保持时间的意义与作用。分析和论述了试验设备、试验方法及试样结构等因素对应力松弛试验结果的影响。验证了初始试验力保持时间,可以一定程度地消除和抑制干扰因素对松弛试验结果的影响。This paper describes the significance and role of the initial test load holding time in the tensile stress relaxation test at room temperature for the pre-stressed rolled steel. The effects of some factors such as testing e-quipment,testing method and sample structure on the stress velaxation test results are analysed and discussed. The holding time of the initial test load, to a certain extent ,can eliminate and inhibit the scale of disturbing error.

关 键 词：应力松弛 拉伸试验 初始试验力 保持时间 钢材 

分 类 号：TG115.52[金属学及工艺—物理冶金]