Dynamic Response of Foam-Core Composite Sandwich Panels Under Pressure Pulse Loading

Dynamic Response of Foam-Core Composite Sandwich Panels Under Pressure Pulse Loading

Bibliographic Details
Main Author: Chapagain, Pradeep
Language:English
Published: University of Akron / OhioLINK 2011
Subjects:
Mechanical Engineering
Foam core sandwich panel
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=akron1311707991
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-akron13117079912021-08-03T05:26:32Z Dynamic Response of Foam-Core Composite Sandwich Panels Under Pressure Pulse Loading Chapagain, Pradeep Mechanical Engineering Foam core sandwich panel A new analytical technique is presented for obtaining the large amplitude, damped response of a crushable foam core composite sandwich panel subjected to pressure pulse loading. A simply-supported sandwich panel of E-Glass/Vinyl Ester facing and PVCfoam core is considered in particular. The equations of motion for the composite sandwich panel were developed by using the Reissner's Variational Theorem and Hamilton's Principle. Core plasticity was introduced when the transverse shear stressesexceeded the transverse shear yield strength in the foam. Finite element analysis was also done using ABAQUS Explicit to simulate the dynamic response of the composite sandwich panel subjected to pressure pulse loading. The analytical solution for the panel transient response was found to be in good agreement with the finite element analysis. Analytical solutions were developed for the facesheet and core failure. The sandwich panel failure was either due to facesheet failure or core shear failure. The analytical solutions developed for the panel response and failure analysis were used for theparametric study of panel with different aspect ratios and core materials (Divinycell PVC H30, H100, H200 and HCP100 foams, and Klegecell R300 foams). The sandwich panel blast resistance increased with the increasing core density for the same facesheet material. It was also found that the lower density foam core have more energy absorption capability when compared to the foam core of higher density. 2011-08-17 English text University of Akron / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=akron1311707991 http://rave.ohiolink.edu/etdc/view?acc_num=akron1311707991 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Mechanical Engineering
Foam core sandwich panel
spellingShingle Mechanical Engineering
Foam core sandwich panel
Chapagain, Pradeep
Dynamic Response of Foam-Core Composite Sandwich Panels Under Pressure Pulse Loading
author Chapagain, Pradeep
author_facet Chapagain, Pradeep
author_sort Chapagain, Pradeep
title Dynamic Response of Foam-Core Composite Sandwich Panels Under Pressure Pulse Loading
title_short Dynamic Response of Foam-Core Composite Sandwich Panels Under Pressure Pulse Loading
title_full Dynamic Response of Foam-Core Composite Sandwich Panels Under Pressure Pulse Loading
title_fullStr Dynamic Response of Foam-Core Composite Sandwich Panels Under Pressure Pulse Loading
title_full_unstemmed Dynamic Response of Foam-Core Composite Sandwich Panels Under Pressure Pulse Loading
title_sort dynamic response of foam-core composite sandwich panels under pressure pulse loading
publisher University of Akron / OhioLINK
publishDate 2011
url http://rave.ohiolink.edu/etdc/view?acc_num=akron1311707991
work_keys_str_mv AT chapagainpradeep dynamicresponseoffoamcorecompositesandwichpanelsunderpressurepulseloading
_version_ 1719420171229069312

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