Experimental and numerical study on damage mode of RC slabs under combined blast and fragment loading
•Blast tests were conducted to study the combined loading effects and failure characteristics of two-way RC slabs.•Numerical simulation based on FEM-SPH (finite elements-smoothed particle hydrodynamics) method is in good agreement with experiments.•The effect of the standoff distances on the damage...
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| Published in | International journal of impact engineering Vol. 142; p. 103579 |
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| Main Authors | , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
Oxford
Elsevier Ltd
01.08.2020
Elsevier BV |
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| Online Access | Get full text |
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| Abstract | •Blast tests were conducted to study the combined loading effects and failure characteristics of two-way RC slabs.•Numerical simulation based on FEM-SPH (finite elements-smoothed particle hydrodynamics) method is in good agreement with experiments.•The effect of the standoff distances on the damage of the RC slabs is discussed, and analytical expressions are derived.
This paper aims at investigation of failure characteristic of RC slabs under combined blast and fragment loading. With experimental device designed, blast tests were conducted to study the combined loading effects and failure characteristics of two-way RC slabs. Numerical studies based on FEM-SPH (finite elements-smoothed particle hydrodynamics) method were carried out and good agreement was obtained between numerical simulation and the testing results. The validated numerical model is then used to carry out parametric studies on damage classification. It is demonstrated that there was spall damage, penetration, crack and fragment in concrete slabs under combined loading. Besides, both explosive mass and standoff distance have profound effects on RC slab damage. |
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| AbstractList | This paper aims at investigation of failure characteristic of RC slabs under combined blast and fragment loading. With experimental device designed, blast tests were conducted to study the combined loading effects and failure characteristics of two-way RC slabs. Numerical studies based on FEM-SPH (finite elements-smoothed particle hydrodynamics) method were carried out and good agreement was obtained between numerical simulation and the testing results. The validated numerical model is then used to carry out parametric studies on damage classification. It is demonstrated that there was spall damage, penetration, crack and fragment in concrete slabs under combined loading. Besides, both explosive mass and standoff distance have profound effects on RC slab damage. •Blast tests were conducted to study the combined loading effects and failure characteristics of two-way RC slabs.•Numerical simulation based on FEM-SPH (finite elements-smoothed particle hydrodynamics) method is in good agreement with experiments.•The effect of the standoff distances on the damage of the RC slabs is discussed, and analytical expressions are derived. This paper aims at investigation of failure characteristic of RC slabs under combined blast and fragment loading. With experimental device designed, blast tests were conducted to study the combined loading effects and failure characteristics of two-way RC slabs. Numerical studies based on FEM-SPH (finite elements-smoothed particle hydrodynamics) method were carried out and good agreement was obtained between numerical simulation and the testing results. The validated numerical model is then used to carry out parametric studies on damage classification. It is demonstrated that there was spall damage, penetration, crack and fragment in concrete slabs under combined loading. Besides, both explosive mass and standoff distance have profound effects on RC slab damage. |
| ArticleNumber | 103579 |
| Author | Chen, Zhaoyue Ren, Xianben Li, Ying Tao, Ran Fang, Daining Gao, Ruxin |
| Author_xml | – sequence: 1 givenname: Ying surname: Li fullname: Li, Ying organization: State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, PR China – sequence: 2 givenname: Zhaoyue surname: Chen fullname: Chen, Zhaoyue organization: Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures, Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, PR China – sequence: 3 givenname: Xianben surname: Ren fullname: Ren, Xianben organization: State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, PR China – sequence: 4 givenname: Ran surname: Tao fullname: Tao, Ran email: taoran@bit.edu.cn organization: Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures, Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, PR China – sequence: 5 givenname: Ruxin surname: Gao fullname: Gao, Ruxin email: ruxinakk@163.com organization: Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures, Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, PR China – sequence: 6 givenname: Daining surname: Fang fullname: Fang, Daining organization: State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, PR China |
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| Keywords | Fragments Experimental test Finite elements-smoothed particle hydrodynamics method Blast loading RC slabs Damage mode |
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| Snippet | •Blast tests were conducted to study the combined loading effects and failure characteristics of two-way RC slabs.•Numerical simulation based on FEM-SPH... This paper aims at investigation of failure characteristic of RC slabs under combined blast and fragment loading. With experimental device designed, blast... |
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| StartPage | 103579 |
| SubjectTerms | Blast loading Combined loading Computational fluid dynamics Computer simulation Concrete slabs Damage Damage mode Experimental test Explosions Finite element method Finite elements-smoothed particle hydrodynamics method Fluid flow Fragments Mathematical models Numerical models RC slabs Smooth particle hydrodynamics |
| Title | Experimental and numerical study on damage mode of RC slabs under combined blast and fragment loading |
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