Radial Inertia Effect on Dynamic Compressive Response of Polymeric Foam Materials
Abstract
Polymeric foams have been extensively used in shock isolation applications because of their superior shock or impact energy absorption capability. However, as a type of soft condensed matter, the highly nonlinear, heterogeneous, and dissipative behavior of polymeric foams may result in an ineffective mitigation or isolation to shock/blast loading. To meet certain desired shock mitigation or isolation requirements, the polymeric foams need to be experimentally characterized to obtain their intrinsic material response. However, radial inertia during dynamic compression has become a severe issue and needs to be fully understood. In this study, we developed an analytical method to calculate the additional stress induced by radial inertia in a polymeric foam specimen. The radial inertia is generally caused by Poisson’s effect and associated with three different mechanisms – axial strain acceleration, large deformation, and Poisson’s ratio change. In conclusion, the effect of Poisson’s ratio change during deformation on radial inertia was specifically investigated for hyperelastic foam materials, and verified with experimental results obtained from Kolsky compression bar tests on a silicone foam.
- Authors:
-
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1477454
- Report Number(s):
- SAND-2018-3446J
Journal ID: ISSN 0014-4851; 663958
- Grant/Contract Number:
- AC04-94AL85000
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Experimental Mechanics
- Additional Journal Information:
- Journal Volume: 59; Journal Issue: 1; Journal ID: ISSN 0014-4851
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Radial inertia; Poisson’s ratio; Dynamic response; Polymeric foam; Split Hopkinson pressure bar (SHPB); Kolsky bar
Citation Formats
Song, Bo, Sanborn, Brett, and Lu, Wei -Yang. Radial Inertia Effect on Dynamic Compressive Response of Polymeric Foam Materials. United States: N. p., 2018.
Web. doi:10.1007/s11340-018-0431-2.
Song, Bo, Sanborn, Brett, & Lu, Wei -Yang. Radial Inertia Effect on Dynamic Compressive Response of Polymeric Foam Materials. United States. https://doi.org/10.1007/s11340-018-0431-2
Song, Bo, Sanborn, Brett, and Lu, Wei -Yang. Fri .
"Radial Inertia Effect on Dynamic Compressive Response of Polymeric Foam Materials". United States. https://doi.org/10.1007/s11340-018-0431-2. https://www.osti.gov/servlets/purl/1477454.
@article{osti_1477454,
title = {Radial Inertia Effect on Dynamic Compressive Response of Polymeric Foam Materials},
author = {Song, Bo and Sanborn, Brett and Lu, Wei -Yang},
abstractNote = {Polymeric foams have been extensively used in shock isolation applications because of their superior shock or impact energy absorption capability. However, as a type of soft condensed matter, the highly nonlinear, heterogeneous, and dissipative behavior of polymeric foams may result in an ineffective mitigation or isolation to shock/blast loading. To meet certain desired shock mitigation or isolation requirements, the polymeric foams need to be experimentally characterized to obtain their intrinsic material response. However, radial inertia during dynamic compression has become a severe issue and needs to be fully understood. In this study, we developed an analytical method to calculate the additional stress induced by radial inertia in a polymeric foam specimen. The radial inertia is generally caused by Poisson’s effect and associated with three different mechanisms – axial strain acceleration, large deformation, and Poisson’s ratio change. In conclusion, the effect of Poisson’s ratio change during deformation on radial inertia was specifically investigated for hyperelastic foam materials, and verified with experimental results obtained from Kolsky compression bar tests on a silicone foam.},
doi = {10.1007/s11340-018-0431-2},
journal = {Experimental Mechanics},
number = 1,
volume = 59,
place = {United States},
year = {Fri Oct 05 00:00:00 EDT 2018},
month = {Fri Oct 05 00:00:00 EDT 2018}
}
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Cited by: 5 works
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Figure 1: Schematic of Kolsky compression bar for dynamic compressive testing of polymeric foams
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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.