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Impact response of lightweight steel foam concrete composite slabs: Experimental, numerical and analytical studies

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  • Linghui Meng
  • Lei Wang
  • Jinbo Chen
  • Qiang Xu
  • Bowen Liu
  • Minghao Yang
  • Shuwang Yang
  • Zhenhui Zhang

Abstract

This paper presents a study on the low-velocity impact response of lightweight steel foam concrete (LSFC) composite slabs. The LSFC composite slab consisted of a W-shaped steel plate, foam concrete and oriented strand board (OSB). Low-velocity impact tests on the LSFC composite slabs were conducted by employing an ultra-high heavy-duty drop hammer testing machine. The tests revealed the failure mode, impact force and displacement response of LSFC composite slabs. The effects of density and thickness of foam concrete and drop height on the peak impact force and energy absorption ratio were investigated. A finite element (FE) model was set up to predict the impact resistance of the LSFC composite slabs, and a good agreement between simulation and test results was achieved. In addition, an equivalent-single-degree-of-freedom (ESDOF) model was set up to predict the displacement response of the LSFC composite slabs under impact loading.

Suggested Citation

  • Linghui Meng & Lei Wang & Jinbo Chen & Qiang Xu & Bowen Liu & Minghao Yang & Shuwang Yang & Zhenhui Zhang, 2024. "Impact response of lightweight steel foam concrete composite slabs: Experimental, numerical and analytical studies," PLOS ONE, Public Library of Science, vol. 19(1), pages 1-29, January.
    • Handle: RePEc:plo:pone00:0296303
    DOI: 10.1371/journal.pone.0296303
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