摘要
从SHPB实验装置加载波形入手,运用非线性动力分析有限元程序对传统矩形波和改进的半正弦波加载下不同直径入射杆中的波形弥散情形进行分析,显示并验证了SHPB半正弦加载波随杆径增大无明显弥散。该波形是用于岩石类脆性材料大直径SHPB测试的理想波形。
Started with the loaded wave of SHPB, the different wave dispersion of different diameter SHPB input bar with rectangle and half-sine wave-formed by using the 3D non-linear dynamic finite element code are analyzed. The results validate and show that half-sine loaded wave of SHPB has little dispersion with the increase in the diameter of bars and is perfect to be used in the test with large-diameter SHPB for brittle materials such as rocks.
出处
《矿冶工程》
CAS
CSCD
北大核心
2005年第3期18-20,共3页
Mining and Metallurgical Engineering
基金
国家自然科学基金项目(10472134)资助
国家自然科学基金重大项目(50490274
50490272)
