SHPB冲击技术在岩石动态力学教学实验中的应用  

Experimental Teaching on the Dynamic Mechanics of Rock by Using SHPB System

作　　者：于洋[1] 徐倩 耿大新[1] 刁心宏[1] YU Yang;XU Qian;GENG Daxin;DIAO Xinhong(National Local Joint Engineering Research Center for Safety Guarantee Technology of Rail Transit Infrastructure Operation and Maintenance,East China Jiaotong University,Nanchang 330013,China)

机构地区：[1]华东交通大学轨道交通基础设施运维安全保障技术国家地方联合工程研究中心,南昌330013

出　　处：《实验室研究与探索》2020年第6期154-157,共4页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(51509092);江西省自然科学基金重点研发项目(20181BBG70052)。

摘　　要：利用霍普金森冲击压杆试验系统(SHPB)测量岩石在冲击荷载下的动态力学性能,开设自主探究性科研实验教学项目,让学生了解岩石动态力学性能与静态力学性能的区别,以及围压对动应力下岩石的有利作用,学习SHPB系统进行岩石动载实验的原理和理论方法,熟练掌握SHPB实验设备操作过程及数据处理方法。通过该教学实验,锻炼了学生的实践动手能力及科研素养,增强了学生科研创新与探索精神。As an experimental teaching,dynamic mechanical properties of rock is measured by SHPB system under impact load.The experiment provides students an opportunity to have a better understanding of the theorem,and helps them master the operation method and process data skillfully.Meanwhile,students could comprehend the difference between dynamic and static mechanical properties of rock and the beneficial effect of confining pressure on rock under dynamic stress.Thus,research and innovation abilities of graduates would be cultivated through the overall teaching process.

关 键 词：动态力学性能 霍普金森冲击压杆试验系统 岩石 实验教学 

分 类 号：G642.0[文化科学—高等教育学]