作　　者： ; ;

机构地区： 同济大学土木工程学院桥梁工程系

出　　处： 《同济大学学报（自然科学版）》 2010年第4期557-563,共7页

摘　　要： 详细总结了Riedel-Hiermaier-Thoma(RHT)混凝土模型,采用标准立方体单轴拉伸和单轴压缩数值模拟揭示了模型基本特性,并将该模型用于弹体侵彻钢筋混凝土数值模拟,钢筋混凝土靶板前后表面的层裂破坏和内部断裂破碎现象均得到了较好反映,计算得到的弹体残余速度和实测值吻合较好,数值模拟还表明钢筋作用和混凝土模型相似角对弹体残余速度影响较小. This paper presents a summary of the Riedel- Hiermaier-Thoma （RHT） concrete model in detail, and the basic characteristic is demonstrated by numerical simulation of the single brick element under the uniaxial compression and uniaxial tensile loads. Then the model is applied to the projectile perforation reinforced concrete simulation, both the spallation damage on the front and back face of concrete slab and rupture damage phenomenon in the inner of slab are well presented in the simulation, the residual velocity of projectile predicated by numerical simulation is on good agreement with experimental results reported by Hanchak. Besides, it is also found that there is little influence of the reinforced bar and the similarity angle on deviatoric plane to the residual velocity of projectile in the simulation.

关 键 词： 混凝土模型 数值模拟 弹体侵彻 钢筋混凝土板

领　　域： [兵器科学与技术]