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 language | English (US) |
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Title of host publication | Dynamic Behavior of Materials - Proceedings of the 2017 Annual Conference on Experimental and Applied Mechanics |
Editors | Leslie Lamberson, Steven Mates, Jamie Kimberley |
Publisher | Springer New York LLC |
Pages | 175-180 |
Number of pages | 6 |
ISBN (Print) | 9783319629551 |
DOIs | |
State | Published - 2018 |
Externally published | Yes |
Event | Annual Conference and Exposition on Experimental and Applied Mechanics, 2017 - Indianapolis, United States Duration: Jun 12 2017 → Jun 15 2017 |
Publication series
Name | Conference Proceedings of the Society for Experimental Mechanics Series |
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Volume | 1 |
ISSN (Print) | 2191-5644 |
ISSN (Electronic) | 2191-5652 |
Other
Other | Annual Conference and Exposition on Experimental and Applied Mechanics, 2017 |
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Country/Territory | United States |
City | Indianapolis |
Period | 6/12/17 → 6/15/17 |
Bibliographical note
Publisher Copyright:© 2018, The Society for Experimental Mechanics, Inc.
Keywords
- Compaction
- Direct impact
- Foams
- Shock