An accurate higher order plate theory for tailoring the properties of functionally graded porous media

Hani E. Naguib, Farooq Al Jahwari

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Optimization of porous material microstructures can lead to the design of lightweight foams that can effectively withstand applied loads and mitigate damage. Functionally graded foams have shown several advantages in experimental studies, including tailorable fracture toughness, ability to withstand over 50% strain without a significant decrease in strength and tailorable density. An important aspect of the use of such functionally graded porous media (FGPM) in structural applications is their weight-saving potential. An accurate analysis tool can help in understanding the parameters that will be best suited for a given application. A higher order plate theory is being developed in this work that accounts for extensibility and parabolic transverse shear strain. The developed theory considers the coupling between principal modes of plate deformation which enables capturing the anisotropic and heterogeneous nature of FGPM. Pores size and shape is assumed to vary through the plate thickness and that being accounted for through homogenization techniques. The accuracy of the theory is being validated against experimental data and existing 3D elasticity solutions. The mechanical response to static stimulations was tested in the scope of local pore size/shape and overall growth rate through the plate thickness.

Original languageEnglish
Title of host publicationProceedings of PPS-30
Subtitle of host publicationThe 30th International Conference of the Polymer Processing Society - Conference Papers
PublisherAmerican Institute of Physics Inc.
Volume1664
ISBN (Electronic)9780735413092
DOIs
Publication statusPublished - May 22 2015
Event30th International Conference of the Polymer Processing Society, PPS 2014 - Cleveland, United States
Duration: Jun 6 2014Jun 12 2014

Other

Other30th International Conference of the Polymer Processing Society, PPS 2014
CountryUnited States
CityCleveland
Period6/6/146/12/14

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Keywords

  • Functionally graded porous material
  • Higher order plate theory
  • Homogenization
  • Pores
  • Thickness extensibility

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Naguib, H. E., & Al Jahwari, F. (2015). An accurate higher order plate theory for tailoring the properties of functionally graded porous media. In Proceedings of PPS-30: The 30th International Conference of the Polymer Processing Society - Conference Papers (Vol. 1664). [400061] American Institute of Physics Inc.. https://doi.org/10.1063/1.4918404