TITLE:
Implicit and Explicit Analysis of the Response of Blast Loaded Reinforced Concrete Slabs
AUTHORS:
Kamel S. Kandil, Mouhamad T. Nemir, Ehab A. Ellobody, Ramy I. Shahin
KEYWORDS:
Implicit Analysis, Explicit Analysis, Strain Rate, Blast Load, Ansys, Ls-Dyna, Scaled Distance
JOURNAL NAME:
World Journal of Engineering and Technology,
Vol.2 No.3,
August
13,
2014
ABSTRACT: Implicit and explicit analyses were examined with experimental work done by Razaqpur et al. In the experiment work, two 1000 × 1000 × 70 mm reinforced concrete slabs were constructed. The slabs were subjected to blast loads generated by the detonation of either 22.4 kg or 33.4 kg of ANFO located at a 3.0 m standoff. Blast wave characteristics, including incident and reflected pressures and reflected impulses were measured. The slabs were modeled by implicit and explicit analysis to study their behavior under blast load to compare their predicted and observed behavior. The post-blast damage and mode of failure of each slab were observed. It was concluded that explicit analysis provides better modeling than implicit analysis.