Simulation of retrofitted unreinforced concrete masonry unit walls under blast loading

Aghdamy, Sanam, Wu, Chengqing, & Griffith, Michael (2013) Simulation of retrofitted unreinforced concrete masonry unit walls under blast loading. International Journal of Protective Structures, 4(1), pp. 21-44.

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Abstract

This paper describes an investigation into the effectiveness of using spray-on nano-particle reinforced polymer and aluminium foam as new types of retrofit material to prevent the breaching and collapse of unreinforced concrete masonry walls subjected to blast over a whole range of dynamic and impulsive regimes. Material models from the LSDYNA material library were used to model the behaviors of each of the materials and its interface for retrofitted and unretrofitted masonry walls. Available test data were used to validate the numerical models. Using the validated LS-DYNA numerical models, the pressure-impulse diagrams for retrofitted concrete masonry walls were constructed. The efficiency of using these retrofits to strengthen the unreinforced concrete masonry unit (CMU) walls under various pressures and impulses was investigated using pressure-impulse diagrams. Comparisons were made to find the most efficient retrofits for masonry walls against blasts.

Impact and interest:

3 citations in Scopus
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ID Code: 63343
Item Type: Journal Article
Refereed: Yes
Keywords: Airblast loads, Aluminium foam, Concrete masonry, Pressure-impulse diagram
DOI: 10.1260/2041-4196.4.1.21
ISSN: 2041-4196
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2013 Multi-Science Publishing
Deposited On: 14 Oct 2013 23:39
Last Modified: 20 Oct 2013 20:22

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