Compaction wave characteristics of polymeric foams under dynamic loading

Suraj Ravindran, Behrad Koohbor, Peter Malchow, Addis Kidane

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

1 Scopus citations

Abstract

The continuum scale shock wave theory has been extensively used to characterize the compaction wave propagation in polymeric foams. However, experimental full-field measurements are scarce to validate such shock wave models. In this study, dynamic experiments with the help of ultra-high speed imaging in conjunction with digital image correlation (DIC) to characterize the compaction wave propagation in polymeric foams. A direct impact is applied on a polymer foam sample using a Hopkinson bar apparatus. The experiment is conducted by shooting a projectile directly at the specimen at an impact velocity of 90 m/s. Typical characteristics of the compaction wave such as compaction wave velocity, compaction wave profile, full-field particle velocities are obtained from the DIC measurements. Furthermore, using a non-parametric method, inertia stress and hence the full-field axial stress is calculated across the compaction wave.

Original languageEnglish (US)
Title of host publicationDynamic Behavior of Materials - Proceedings of the 2017 Annual Conference on Experimental and Applied Mechanics
EditorsLeslie Lamberson, Steven Mates, Jamie Kimberley
PublisherSpringer New York LLC
Pages175-180
Number of pages6
ISBN (Print)9783319629551
DOIs
StatePublished - 2018
Externally publishedYes
EventAnnual Conference and Exposition on Experimental and Applied Mechanics, 2017 - Indianapolis, United States
Duration: Jun 12 2017Jun 15 2017

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
Volume1
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Other

OtherAnnual Conference and Exposition on Experimental and Applied Mechanics, 2017
Country/TerritoryUnited States
CityIndianapolis
Period6/12/176/15/17

Bibliographical note

Publisher Copyright:
© 2018, The Society for Experimental Mechanics, Inc.

Keywords

  • Compaction
  • Direct impact
  • Foams
  • Shock

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