摘要
利用一级压缩空气炮进行高速平面撞击实验，分别测量了砂岩、花岗岩和石灰岩试件组成的靶板中的应力脉冲波形。利用改进的拉格朗日分析方法对应力－距离－时间的实验数据进行分析处理，得到岩石的动态本构关系。
This paper outlines an experimental and computaional study of constitutive relations of rocks, including sandstone,granite, and limestone. Plate impact experiments were conducted by means of a gas gun. A Lagrangian analysis presents for a series of stress histories. The procedure for fitting a stress time distance surface is described. From fitted surface are obtained the derivatives of the flow variables. Mechanical properties and deformation characteristics of rocks under strong impact loading are analysed.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
1996年第6期61-68,共8页
Chinese Journal of Geotechnical Engineering
关键词
岩石
力学性质
变形
试验
应力脉冲波形
dynamical property of rock, constitutive relation, Lagrangian analysis, surface fitting.
