Implicit and Explicit Analysis of the Response of Blast Loaded Reinforced Concrete Slabs

• 作者: Ehab A. Ellobody Kamel S. Kandil Mouhamad T. Nemir Ramy I. Shahin
• 来源期刊: 世界工程和技术(英文)
• 学科: 医学
• 关键词: IMPLICIT ANALYSIS EXPLICIT ANALYSIS Strain Rate BLAST Load Ansys LS-DYNA Scaled DISTANCE
• 年，卷（期）: 2014,（3）
• 页码范围: 211-221
• 页数: 11页
• 分类号: R73

摘要

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.