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The dynamic response of clamped rectangular Y-frame and corrugated core sandwich plates

Rubino, V. and Deshpande, V. S. and Fleck, N. A. (2009) The dynamic response of clamped rectangular Y-frame and corrugated core sandwich plates. European Journal of Mechanics - A/Solids, 28 (1). pp. 14-24. ISSN 0997-7538. doi:10.1016/j.euromechsol.2008.06.001. https://resolver.caltech.edu/CaltechAUTHORS:20190919-171401171

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Abstract

The dynamic response of fully clamped, monolithic and sandwich plates of equal areal mass has been measured by loading rectangular plates over a central patch with metal foam projectiles. All plates are made from AISI 304 stainless steel, and the sandwich topologies comprise two identical face-sheets and either Y-frame or corrugated cores. The resistance to shock loading is quantified by the permanent transverse deflection at mid-span of the plates as a function of projectile momentum. At low levels of projectile momentum both types of sandwich plate deflect less than monolithic plates of equal areal mass. However, at higher levels of projectile momentum, the sandwich plates tear while the monolithic plates remain intact. Three-dimensional finite element (FE) calculations adequately predict the measured responses, prior to the onset of tearing. These calculations also reveal that the accumulated plastic strains in the front face of the sandwich plates exceed those in the monolithic plates. These high plastic strains lead to failure of the front face sheets of the sandwich plates at lower values of projectile momentum than for the equivalent monolithic plates.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.euromechsol.2008.06.001DOIArticle
ORCID:
AuthorORCID
Rubino, V.0000-0002-4023-8668
Deshpande, V. S.0000-0003-3899-3573
Fleck, N. A.0000-0003-0224-1804
Additional Information:© 2008 Elsevier. Received 4 March 2008, Accepted 7 June 2008, Available online 3 July 2008. This work was supported by the Netherlands Institute for Metal Research: project number MC1.03163, The Optimal Design of Y-core sandwich structures.
Funders:
Funding AgencyGrant Number
Netherlands Institute for Metal ResearchMC1.03163
Subject Keywords:Sandwich plates; Dynamic response; FE simulations; Lattice materials
Issue or Number:1
DOI:10.1016/j.euromechsol.2008.06.001
Record Number:CaltechAUTHORS:20190919-171401171
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190919-171401171
Official Citation:V. Rubino, V.S. Deshpande, N.A. Fleck, The dynamic response of clamped rectangular Y-frame and corrugated core sandwich plates, European Journal of Mechanics - A/Solids, Volume 28, Issue 1, 2009, Pages 14-24, ISSN 0997-7538, https://doi.org/10.1016/j.euromechsol.2008.06.001. (http://www.sciencedirect.com/science/article/pii/S0997753808000740)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:98762
Collection:CaltechAUTHORS
Deposited By: Vito Rubino
Deposited On:20 Sep 2019 23:08
Last Modified:16 Nov 2021 17:41

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