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Steel and Composite Structures Volume 46, Number 2, January25 2023 , pages 203-210 DOI: https://doi.org/10.12989/scs.2023.46.2.203 |
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Dynamic/static stability characteristics of sandwich FG porous beams |
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Weijia Yu and Linyun Zhou
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| Abstract | ||
| In the present research, dynamic deflections of a sandwich beam having functionally graded (FG) porous core have been investigated assuming that the sandwich beam is exposed to a pulse load of blast type. The two layers of sandwich beam have been made of a polymeric matrix reinforced by graphene oxide powder (GOP). The micromechanical formulation of the layers has been done via Halpin-Tsai model. The solution method is chosen to be Ritz method which is an efficient method to solve the system of equations of beams modeled based on a higher-order theory. To derive the time history of sandwich beam under pulse load, Laplace method has been used. The porosity content of the core, the GOP content of the layers, thickness of the layer and also duration of the applied load have great influences of the responses of sandwich beam. | ||
| Key Words | ||
| composite; dynamic response; porous; pulse load; sandwich beam; stability | ||
| Address | ||
| Weijia Yu:School of Architecture, Southeast University, Nanjing 210096, Jiangsu, China Linyun Zhou: School of Transportation, Southeast University, Nanjing 210096, Jiangsu, China | ||