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Seung-Hun Sung

Seung-Hun Sung

Agency for Defense Development, South Korea

Title: Feasibility study on a cumulative damage assessment method for a reinforced concrete slab under blast loads

Biography

Biography: Seung-Hun Sung

Abstract

This study proposes a novel cumulative damage assessment method for a reinforced concrete (RC) slab using an equivalent single degree of freedom (SDOF) model. The proposed method utilizes a structural permanent deformation evaluted from the equivalent SDOF model and its newly constructed resistance function due to initial damage. In order to confirm an applicability and a limitation of the proposed method, a series of numerical simulations and experiments were carreid out. Three consecutive explosions were numerically and experimentally conducted at same detonation points with the same explosive weight for the one-way RC slab and for the two-way RC slab. As a result of comparison between numerical simulaions and experiments, it is sufficiently applicable to assess cumulative damages for a RC slab under blast loads, although the method has some limitation.