Advances in materials Research

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Aluminum and E-glass epoxy plates behavior subjected to shock loading

  • Muhit, Imrose B. (School of Civil and Environmental Engineering, Chung-Ang University) ;
  • Sakib, Mostofa N. (Institute of Water and Flood Management, Bangladesh University of Engineering and Technology) ;
  • Ahmed, Sheikh S. (Department of Civil Engineering, University of Asia Pacific)
  • Received : 2017.03.17
  • Accepted : 2017.06.26
  • Published : 2017.06.25
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Abstract

The terrorist attacks and dangers by bomb blast have turned into an emerging issue throughout the world and the protection of the people and structures against terrorist acts depends on the prediction of the response of structures under blast and shock load. In this paper, behavior of aluminum and unidirectionally reinforced E-Glass Epoxy composite plates with and without focal circular holes subjected to shock loading has been identified. For isotropic and orthotropic plates (with and without holes) the classical normal mode approach has been utilized as a part of the processing of theoretical results. To obtain the accurate results, convergence of the results was considered and a number of modes were selected for plate with and without hole individually. Using a shock tube as a loading device, tests have been conducted to composite plates to verify the theoretical results. Moreover, peak dynamic strains, investigated by experiments are also compared with the theoretical values and deviation of the results are discussed accordingly. The strain-time histories are likewise indicated for a specific gauge area for aluminum and composite plates. Comparison of dynamic-amplification factors between the isotropic and the orthotropic plates with and without hole has been discussed.

Keywords

References

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