抄録
Protection of critical facilities against an accidental impact loading is becoming an important consideration to ensure safeguard of the facility. Recently considered accidental impact conditions involving critical facilities are aircraft impact, impact of tornado generated large objects, and impact of tsunami generated large objects on nuclear facilities. Most of protective structures in such critical facilities are reinforced concrete walls, and the prediction of impact performance of these walls is challenging even with sophisticated commercial software as there are variety of concrete material models. Selection of an appropriate concrete material model and corresponding model parameters is not always straight forward. In the present study, performance of two concrete material models available in LS-DYNA is compared using experimental results of aircraft engine impact on reinforced concrete walls. The study is useful for engineers and researchers who have limited experience on the selection of appropriate model for concrete and corresponding model parameters.
