摘要
本文采用分离式Hopkinson压杆来研究土壤在冲击荷载下的动态力学性能,为进行土的数值模拟提供必要的参数。原料采用当地的粘性红土,用特制的模具通过相同工艺制作成质量相同的试样,分别在三个不同的应变率下对其进行了三组冲击加载试验,通过对实验数据的分析,可以得出:实验所用土体材料具有明显的应变率效应,随着应变率的增大,应力和应变显著提高。
It is very important to know constitution equations of soil in architecture industry. In this paper , the test of soil is made on the Hopkinson pressure bar at various strain-rates. The samples are made of the local viscosity laterite with a special mould. It is found that the soil is very sensitive to the strain-rates, and the stress and strain increase with the strain-rate effect increasing.
出处
《试验技术与试验机》
2006年第2期22-24,共3页
Test Technology and Testing Machine
