Drop Test of Thick-Walled Concrete Cylinder Subjected to Shrinkage and Expansion

Abstract

Two different models including confined cylinder with internal pressure and nonconfined cylinder of a concrete structure are selected for a drop test. With regard to internal pressure, the performance of these structures is compared considering the shrinkage strain which is calculated based on the latest model of RILEM called "B4" (RILEM report, 2014) and expansion which is normally due to alkali-silica reaction (ASR) effect on concrete and calculated based on the substantial experimental study of Larive (1998). The simulations were performed in LS-DYNA, which is suitable for high rate problems in form of explicit time integration. MAT_159 which is available in material library of LS-DYNA is used for the concrete. The failure modes due to the impact of the end drop test are studied.