用拉格朗日分析方法研究水泥石的动态力学性能

Dynamic Property of Cement Stone by Lagrangian Analysis Method

通过在轻气炮上作强动载实验获得的应力时间历程曲线，利用改进的拉格朗日分析方法（曲面拟合法）研究了水泥石的动态力学性能，并获得了一些有意义的结果。即应力应变滞回特性、应变率效应及波形弥散特征。

On the basis of stress-time curves from intens loadding experiment with light gas gun,some dynamic properties of cement stone are studied by improved Lagrangian analysis method(curved surface-fitting method),and many signifiiant conclusions,for examplle:stagnant-return phenomena of stress-strain curves,strain-rate effect and waveform dissipation are get.