水泥砂浆的动态力学性能的数值研究

The Numerical Simulation on the Dynamic Mechanical Property of Cement Mortar Material

混凝土材料常表现为线弹性行为,其失效应变很小,实验测试难度较大.基于实验结果,文章利用ANSYS/LS-DYNA有限元分析软件,开展了对混凝土基底材料水泥砂浆的单轴冲击压缩分析.研究结果表明,使用脉冲整形器能够得到较为理想的入射波形,提高实验精度;应变分析结果显示径向约束在很大程度上影响试件的变形.研究结果对混凝土材料的工程应用具有一定的参考价值.

Concrete materials often present linear elastic character,and its failure strain is small,so the corresponding experimental tests are developed difficulty.Based on the experimental results,the axial impact compressive test on the cement mortar was developed by using ANSYS/LS-DYNA finite element analysis software.Research results show that the preferable incident wave can be obtained by using the shaper to improve the experiment precision.According to the axial compression strain analysis,radial constraint has an important effect on the deformation of tested specimen.The experimental results are of worth to engineering application of concrete materials.