Metal foam cladding emerges as a promising measure for structure protection against close range blast. With proper cladding\ndesign, a considerable amount of energy can be absorbed while the load transmitted to the protected structure can be lowered to a\ncontrollable level, leading to less damage of the protected structure. However, it is not clear whether the in-structure shock can be\nmitigated by attaching foam cladding. The present study theoretically investigates the response of a structural member subjected to\na close range blast, for both scenarios with and without attaching foam cladding. Subsequently, shock response spectra are employed\nto assess the in-structure shock of both situations. It is found that applying foam cladding does not effectively mitigate in-structure\nshock of surface structures.
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