混凝土动态劈裂拉伸试验的数值模拟(英文)

Numerical Simulation on the Dynamic Splitting Tensile Test of Concrete

采用LS-DYNA有限元编码程序,对混凝土的动态劈裂拉伸试验进行了数值模拟。给出了混凝土试样在不同类型加栽情况下应力分布之间的差异,证实了动态劈裂拉伸试验的有效性,提出了改进试验方法的若干结论.

The experimental method on the dynamic splitting tensile test of concrete is introduced in the present paper. By using the FEM code LS-DYNA, the numerical simulation on the dynamic splitting tensile test of concrete is carried out. The numerical simulation gives the differences between the stress distributions in the concrete specimen under different kinds of loading case. The validity of dynamic splitting tensile test is verified. Some conclusions on improving test method are given.