Steel and Composite Structures

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Transient dynamic analysis of sandwich beam subjected to thermal and pulse load

  • Layla M. Nassir (Mustansiriyah University, Engineering Collage) ;
  • Mouayed H.Z. Al-Toki (Mustansiriyah University, Engineering Collage) ;
  • Nadhim M. Faleh (Mustansiriyah University, Engineering Collage) ;
  • Hussein Alwan Khudhair (Mustansiriyah University, Engineering Collage) ;
  • Mamoon A.A. Al-Jaafari (Mustansiriyah University, Engineering Collage) ;
  • Raad M. Fenjan (Mustansiriyah University, Engineering Collage)
  • Received : 2019.09.19
  • Accepted : 2023.09.13
  • Published : 2024.04.10
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Abstract

Transient dynamic behavior of a sandwich beam under thermal and impulsive loads has been researched in the context of higher-order beam theory. The impulse load of blast type has been enforced on the top exponent of the sandwich beam while it is in a thermal environment. The core of the sandwich beam is cellular with auxetic rectangular pattern, whereas the layers have been built with the incorporation of graphene oxide powder (GOP) and are micromechanically introduced through Halpin-Tsai formulization. Governing equations for the sandwich beam have been solved through inverse Laplace transform style for obtaining the dynamical deflections. The connection of beam deflections on temperature variability, GOP quantity, pulse load situation and core relative density has been surveyed 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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