In this paper, a finite element dynamic simulation study was performed to gain an insight about the blast wall test details for the offshore structures. The simulation was verified using qualitative and quantitative comparisons for different materials. Based on in-depth examination of blast simulation recordings, dynamic behaviors occurred in the blast wall against the explosion are determined. Subsequent simulation results present that the blast wall made of high energy absorbing high manganese steel performs much better in the shock absorption. In this paper, the existing finite element shock analysis using the LS-DYNA program is further extended to study the blast wave response of the corrugated blast wall made of the high manganese steel considering strain rate effects. The numerical results for various parameters are verified by comparing different material models with dynamic effects occurred in the blast wall from the explosive simulation.

In this study, the explosion resistance on the normal strength concrete and HPFRCC structure members were evaluated. As a result of TNT ignition test, blow out occurred in normal strength concrete structure member, but HPFRCC structure member only cracked slightly. The structure member with 180 MPa HPFRCC has excellent resistance against explosive load. Therefore, HPFRCC is considered to be applicable to national main facilities and major military facilities.