Numerical Simulation of Spalling Damage Based on the Management Method with Variable Array

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.