地震工程学报Issue(z2)：131-136,6.DOI:10.3969/j.issn.1000-0844.2015.增刊2.0131
冲击荷载作用下干砂动力特性试验研究
Test Study on the Dynamic Behavior of Dry Sands Subjected to Impact Loading
摘要
Abstract
A split Hopkinson pressure bar (SHPB) was appropriately modified to study the dy‐namic behavior of dry sand .A stable ,incident ,reflective ,and transmitted waves under the strain rates of 102 ~ 103 s - 1 were obtained and a rubber membrane barrier was found to facilitate trans‐mission of the pressure wave .The results showed that strain rate effect can be ignored for dry sand at high strain rate .For sand samples of the same thickness ,the strain rates were increased as the load increased .The experimental results suggested an upward trend in strain rate .Under the identical loading conditions ,as the thickness of sand samples was increased ,the resulting strain rate decreased .关键词
霍普金森压杆(SHPB)/干砂/应变率/波形整形器/冲击荷载/动力特性Key words
split Hopkinson pressure bar (SHPB)/dry sand/strain rate/pulse shaper/impact loading/dynamic behavior分类
建筑与水利引用本文复制引用
张艳萍,陈育民,王维国..冲击荷载作用下干砂动力特性试验研究[J].地震工程学报,2015,(z2):131-136,6.基金项目
国家自然科学基金面上项目（51379067）；长江学者和创新团队发展计划（IRT1125）；2012年江苏省“青蓝工程”优秀青年骨干教师项目 （）
