基于HJC模型的钢筋混凝土侵彻仿真r失效准则与参数

摘要

Aiming at the inadequate descriptions in definitions of elements'failure for the various constitutive models of reinforced concrete,a new approach by rectifying the parameter FS of HJC material model ,base on LSDYNA's algorithms was presented.By adopting the combinations of criterions of element's failure,which was offered by FS and LSDYNA,the numerical simulation of projectile's penetration into reinforced concrete was carried out.It was proved that this method had a certain value in engineering by contrasting with the coun-terpart practical experiments.%针对侵彻钢筋混凝土各种本构模型失效定义不够完善的问题,提出了基于HJC材料模型的钢筋混凝土侵彻仿真失效准则与参数的方法.该方法是基于HJC本构模型自带的失效准则定义,运用LSDYNA算法修正HJC材料模型中的失效控制参数FS,采用上述模型自带的失效准则与参数并联合其他三种辅助失效准则来弥补HJC材料模型在失效定义方面的不足.侵彻试验结果表明,该数值模拟方法产生的侵彻贯穿现象与试验结果基本相同,因此该数值模拟方法具有一定的工程价值.