Based on the steel-concrete-steel(SCS)composite slabs explosion test,the LS-DYNA display dynamic analysis program was used to numerically simulate its blast resistance performance.The reliability of the model was verified by comparison with experiments,and the model was used to analyze the effects of scale distance,concrete thickness-to-length ratio,steel plate thickness,and concrete strength variation on the dynamic response of the SCS composite slabs.The analysis results show that the finite element model can effectively simulate the dynamic response of SCS composite slabs under blast load,with the decrease of proportional distance,the spanwise displacement of SCS composite slabs gradually increases and changes from elastic deformation to plastic deformation;increasing the concrete thickness-to-length ratio and steel plate thickness can effectively reduce the spanwise displacement of SCS composite slabs,while the concrete strength will not have a significant effect on the blast resistance of SCS composite slabs.
维普
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