Numerical Study of a RC Slab Subjected to Blast: A Coupled Eulerian-Lagrangian Approach

3rd World Multidisciplinary Civil Engineering, Architecture, Urban Planning Symposium

土木建筑工程;文学

Botez, Mircea D.^1 ; Bredean, Lucian A.^1

Faculty of Civil Engineering, Technical University Cluj-Napoca, 28 Memorandumului Str., Cluj-Napoca

400114, Romania^1

关键词: Computational power;    Erosion algorithms;    Eulerian-lagrangian;    Eulerian-Lagrangian approach;    Numerical approaches;    Research communities;    Structural response;    Technical literature;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/471/5/052036/pdf
DOI  :  10.1088/1757-899X/471/5/052036

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The behaviour assessment of structures affected by extreme loads, such as explosions, has recently become an interesting topic for the research community. The response of structures (or sub-assemblages) subjected to explosions can be assessed through experimental and/or numerical approaches. Due to increased costs and constraining infrastructure requirements, experimental studies related to this topic are available in a limited number in the technical literature. The increased computational power and the advanced FEM software available nowadays, facilitate the efficient use of numerical approaches in the study of blast effects on structures. The goal of the current study is to numerically investigate the structural response of a reinforced concrete slab, subjected to close-in explosion by using the Coupled Eulerian-Lagrangian (CEL) approach in combination with an erosion algorithm. Four nonlinear dynamic analyses are performed on a numerical model assembled in Abaqus/Explicit software package. The numerical results reveal a good agreement with experimental data available in technical literature, the differences varying between 1.2% and 11.4%.