介绍了SHPB的试验装置和原理,及其在混凝土动态力学性能测试中的发展历程,分析了混凝土SHPB试验中试件应力不均匀、大直径压杆的弥散效应、端面摩擦效应、试件惯性效应、波导杆与试件的阻抗匹配、试验数据处理的规范化等问题,并介绍了一些解决问题的方法,为混凝土SHPB试验技术的研究提供参考。
Introduced the experimental device and principles of SHPB and its development history in testing the dynamic mechanical properties of concrete.Problems in SHPB experiments of concrete were analyzed containing uneven stress,the dispersion effect of large diameter pressure bar the end frictional effect,the inertial effect of specimen the impedance matching between Hopkinson bar and the specimen and the standardization of test data processing issues.Some methods to solve these problems were also introduced.These can serve as reference for the research of concrete SHPB experiment techniques.