Steel and Composite Structures

  • 제45권6호
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  • Pages.831-837
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  • 2022
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Numerical investigation on dynamic characteristics of sandwich plates under periodic and thermal loads

  • Mouayed H.Z., Al-Toki (Middle Technical University, Technical College) ;
  • Wael Najm, Abdullah (Al-Mustansiriah University, Engineering Collage) ;
  • RidhaA., Ahmed (Al-Mustansiriah University, Engineering Collage) ;
  • Nadhim M., Faleh (Al-Mustansiriah University, Engineering Collage) ;
  • Raad M., Fenjan (Al-Mustansiriah University, Engineering Collage)
  • 투고 : 2021.07.23
  • 심사 : 2022.11.30
  • 발행 : 2022.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

Numerical investigation on dynamic characteristics of sandwich plates under periodic and thermal loads has been presented by assuming that the plate has three layers which are a foam core and two skins. The foam core made of Aluminum has porosities with uniform and graded dispersions. The sandwich plate has been supposed to be affected by periodical compressive loads. Also, temperature variation causes uniform thermal load. The formulation has been established based upon a higher-order plate theory and Ritz method has been used to solve the equations of motion. The stability boundaries have also been obtained performing Bolotin's method. It will be indicated that stability boundaries of the sandwich plate depend on periodical load parameters, porosities, skin thickness and temperature.

키워드

과제정보

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

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