Applications of Blast/FX, an explosive effects analysis software tool

Fertal, M.J.; Leone, Karen M.

doi:10.1109/ccst.2000.891190

Cited by 2 publications

(1 citation statement)

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“…An RC column may be subjected to different loading conditions such as static, dynamic, or short-duration dynamic loads. Generally, static loads are considered time-independent since they do not produce inertia effect and may last very long such as gravity compared to dynamic loads [2]. Dynamic loads may be referred to earthquake loads or wind gusts as time-dependent loads.…”

Section: Introductionmentioning

confidence: 99%

Large deflection behavior effect in reinforced concrete columns exposed to extreme dynamic loads

Abedini

Mutalib

Mehrmashhadi

et al. 2020

Front. Struct. Civ. Eng.

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Reinforced concretes (RC) have been widely used in constructions. In construction, one of the critical elements carrying a high percentage of the weight is columns which were not used to design to absorb large dynamic load like surface bursts. This study focuses on investigating blast load parameters to design more resistant RC columns to blast loads. The numerical model is based on finite element analysis (FEA) using LS-DYNA. Numerical results are validated against blast field tests available online. Couples of simulations are performed with changing blast parameters to study effects of various scaled distances on the nonlinear behavior of RC columns. According to simulation results, the scaled distance has a substantial impact on the blast response of RC columns. With lower scaled distance, higher peak pressure and larger pressure impulse are applied on the RC column. Eventually, keeping the scaled distance unchanged, increasing the charge weight or shorter standoff distance cause more damage to the RC column. Intensive studies are carried out to investigate the effects of scaled distance and charge weight on the damage degree and residual axial load carrying capacity of RC columns with various column width, longitudinal reinforcement ratio and concrete strength. Results of this research will be used to assessment the effect of an explosion on the dynamic behavior of RC columns.

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Section: Introductionmentioning

confidence: 99%