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An Analytical Model for High-Velocity Impact of Composite Sandwich Panels

Sirivolu, Dushyanth
http://rave.ohiolink.edu/etdc/view?acc_num=akron1227548412

Abstract Details

2008, Master of Science, University of Akron, Mechanical Engineering.
Analytical solutions for the deformation, penetration and perforation of a composite sandwich panel subjected to high velocity impact by a rigid, hemispherical nose projectile were derived. The solution for the deformation response was derived from a two degrees-of-freedom model for the sandwich panel involving local indentation, core crushing and global bending/shear deformations. Two different composite sandwich panels, one with orthotropic E-glass vinyl ester facesheets and HCP 100 foam core and other with H200 foam core were considered. The analytical solution for the local indentation and global deflection under the projectile was found to be within 25% of finite element results. A multi-stage perforation model was developed to calculate the residual velocity of the projectile. The perforation model included incident facesheet failure, core shear failure and distal facesheet failure. Finite element analysis of the composite sandwich panel was performed to predict the perforation response of the composite sandwich panels. The analytical result for the residual velocity was within 5% of finite element predictions.
Michelle S. Hoo Fatt, PhD (Advisor)
89 p.
Mechanical Engineering; Mechanics
high velocity impact; composite sandwich panels; analytical model

Recommended Citations

Citations

  • Sirivolu, D. (2008). An Analytical Model for High-Velocity Impact of Composite Sandwich Panels [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1227548412

    APA Style (7th edition)

  • Sirivolu, Dushyanth. An Analytical Model for High-Velocity Impact of Composite Sandwich Panels. 2008. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1227548412.

    MLA Style (8th edition)

  • Sirivolu, Dushyanth. "An Analytical Model for High-Velocity Impact of Composite Sandwich Panels." Master's thesis, University of Akron, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1227548412

    Chicago Manual of Style (17th edition)

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© 2008, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.