SHPB实验中应变片的应用和标定

SHPB技术是一种检测材料动态力学性能的经典技术。由于其设计巧妙、结构简单、操作简易,近年来这项技术取得了很大的进展。在实验中,为测得压杆在动态冲击下的应变,用到了电阻应变片和半导体应变片。文章介绍了在SHPB实验中应变片的使用,阐述了应变片标定技术,规范了实验的操作程序。

Stain Gauge's Application and Demarcate in SHPB Experiment

SHPB technique is a typical technique of testing dynamic mechanical properties of materials.For its ingenious design,simple structure,easy of operation,in recent years the technology has made great progress.In the experiment,we use resistance strain gages and semiconductor strain gauges to measure the strain of pressure bar in the dynamic impact.This article describes the use of strain gauges in the SHPB experiment,expounds strain gauge calibration technique,standardized operating procedures of the experiment.