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Shock Wave Structure in Particulate Composites

Rauls, Michael B. and Ravichandran, Guruswami (2015) Shock Wave Structure in Particulate Composites. Procedia Engineering, 103 . pp. 515-521. ISSN 1877-7058. http://resolver.caltech.edu/CaltechAUTHORS:20150602-101348687

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Abstract

An experimental study of shock wave profiles in particulate composites of various compositions is undertaken to determine how shock width and rise times depend on the mean particulate size. The composites under examination serve as a model for concrete or polymer bonded explosives, based upon the impedance mismatch between the relatively stiff particulates and compliant matrix. Polymethyl Methacrylate (PMMA) and glass spheres ranging in size from 100 μm to 1000 μm are used in concentrations of 30% and 40% glass by volume for experiments with a single bead size, and up to 50% glass by volume for multi-mode particle size distributions. A linear change in shock wave rise time is observed as a function of mean particulate diameter.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.proeng.2015.04.067DOIArticle
http://www.sciencedirect.com/science/article/pii/S1877705815007419PublisherArticle
Additional Information:© 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). The support of the Air Force Office of Scientific Research and Air Force Research Laboratory through the University Center of Excellence in High-Rate Deformation Physics of Heterogeneous Materials (Award # FA9550-12-1-0091) is gratefully acknowledged. Michael Rauls acknowledges the support from the Department of Defense (DoD) through the National Defense Science and Engineering Graduate Fellowship (NDSEG) Program.
Group:GALCIT
Funders:
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)FA9550-12-1-0091
Air Force Research Laboratory (AFRL)UNSPECIFIED
National Defense Science and Engineering Graduate (NDSEG) FellowshipUNSPECIFIED
Subject Keywords:Shock wave, Particulate composite, Impact
Record Number:CaltechAUTHORS:20150602-101348687
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150602-101348687
Official Citation:Michael B. Rauls, Guruswami Ravichandran, Shock Wave Structure in Particulate Composites, Procedia Engineering, Volume 103, 2015, Pages 515-521, ISSN 1877-7058, http://dx.doi.org/10.1016/j.proeng.2015.04.067. (http://www.sciencedirect.com/science/article/pii/S1877705815007419)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:57934
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:02 Jun 2015 17:41
Last Modified:29 Sep 2016 23:17

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