CAJ | 학술논문

以弹塑性力学和动力有限元理论为基础,采用动态数组和动态地址管理方法,依据震塌破坏准则,适时判断震塌破坏单元,并相应改变有限元计算区域以及由此产生的自由度、A数组及相关地址的适时改变,对防护结构在爆炸载荷作用下的震塌破坏效应进行了数值仿真研究. 在RSEAP程序的框架基础上,编制了相应的计算程序,并利用该程序对典型的钢筋混凝土板爆炸震塌实验工况进行数值仿真,仿真结果与实验结果的对比表明两者吻合较好.
이탄소성역학화동력유한원이론위기출,채용동태수조화동태지지관리방법,의거진탑파배준칙,괄시판단진탑파배단원,병상응개변유한원계산구역이급유차산생적자유도、A수조급상관지지적괄시개변,대방호결구재폭작재하작용하적진탑파배효응진행료수치방진연구. 재RSEAP정서적광가기출상,편제료상응적계산정서,병이용해정서대전형적강근혼응토판폭작진탑실험공황진행수치방진,방진결과여실험결과적대비표명량자문합교호.
Based on elastic-plastic mechanics and dynamic finite-element theory, the management method of dynamic array and dynamic address is proposed. According to spalling failure criteria, spalling damage elements are confirmed in good time and finite element computational domains are changed. Accordingly, degrees of freedom, A array and correlative addresses are changed. Numerical simulation of spalling damage effect of protective structure under explosion loading is carried out. On the basis of RSEAP program and the method above mentioned, a new computational program is programmed for the simulation of spalling damage. Numerical simulation of explosion spalling damage of typical reinforced concrete is accomplished by the agency of the new computational program. The simulation results showed a good agreement with experimental results.