Steel and Composite Structures

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On dynamic deflection analysis of sandwich beams under thermal and pulse loads

  • Mamoon A.A. Al-Jaafari (Al-Mustansiriah University, Engineering Collage ) ;
  • Haider Ali Hussein (Al-Mustansiriah University, Engineering Collage ) ;
  • Abdulaziz Saud Khider (Al-Mustansiriah University, Engineering Collage ) ;
  • Raad M. Fenjan (Al-Mustansiriah University, Engineering Collage ) ;
  • Nadhim M. Faleh (Al-Mustansiriah University, Engineering Collage )
  • Received : 2021.08.25
  • Accepted : 2022.08.03
  • Published : 2023.01.25
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Abstract

Dynamic deflection analysis of sandwich beams with cellular core under thermal and pulse loads has been performed in the present article. The cellular core sandwich beam has two layers fortified by graphene oxide powder (GOP) which are micromechanically modeled by Halpin-Tsai formulation. The pulse load has blast type and is applied on the top side of sandwich beam. The system of equations has been developed based on higher-order beam theory and Ritz method. Then, they are solved in Laplace domain to derive the dynamic deflections. The dependency of beam deflection on temperature variation, GOP content, pulse load duration/location and core relative density has been studied in detail.

Keywords

Acknowledgement

The authors would like to thank Mustansiriyah university (www.uomustansiriyah.edu.iq) Baghdad-Iraq for its support in the present work.

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