Finite element analysis and experimental verification of Polymer reinforced CRC improved for close-in detonation

Publication: Research - peer-reviewJournal article – Annual report year: 2007

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Compact Reinforced Composite, CRC, is a high-strength cement-based composite that holds an enormous flexural and energy-absorbing capacity due to the close-spaced high strength steel reinforcement and a high-strength cement-based fiber DSP matrix. The material has been used in various constructions, including as protection for explosion hazards. In connection with explosive impact, the fraction of shear reinforcement needed to obtain full flexural capacity is controlled by the stand-off distance. For close-in detonations, a high fraction of shock reinforcement is needed to obtain full flexural capacity without breaching. This paper introduces an efficient method for implementing high fractions of polymer shock reinforcement in a CRC element. Experimental tests and explicit finite element analysis is used to demonstrate the potentials of this material. This paper also provides the reader with the information and data needed to formulate a simple material model for High-Strength Fiber-Reinforced Concrete suitable for predicting the responses of Polymer reinforced CRC under close-in detonations using the general purpose transient dynamic finite element program LS-DYNA.
Original languageEnglish
JournalInternational Journal of Impact Engineering
Publication date2007
ISSN0734-743X
StatePublished

Keywords

  • Polymer, Shock, CRC, HPC, FEA, Close-in detonation, LS-DYNA
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