Dynamic compressive stress-strain curves for ethylene-propylene-diene monomer (EPDM) rubber at various strain rates under nearly uniaxial strain conditions have been determined with a pulse-shaped split Hopkinson pressure bar (SHPB). The resultant stress-strain curves exhibited significantly nonlinear behavior, with strong sensitivities to strain rates. The dynamic stresses in the EPDM rubber at certain strains under uniaxial strain conditions increased significantly as compared to those under uniaxial stress conditions. A strain-rate-dependent material model, including a strain-rate-sensitive term, has been developed through a strain-energy function for compressible Mooney-Rivlin hyperelastic solids. The model provided a good description of the compressive axial stress-strain response of the EPDM rubber at various strain rates under uniaxial strain conditions.
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e-mail: bosong@u.arizona.edu
e-mail: weinong@u.arizona.edu
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April 2004
Technical Papers
Dynamic Compressive Behavior of EPDM Rubber Under Nearly Uniaxial Strain Conditions
B. Song,
e-mail: bosong@u.arizona.edu
B. Song
Department of Aerospace and Mechanical Engineering, The University of Arizona, Tucson, AZ 85721-0119
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W. Chen
e-mail: weinong@u.arizona.edu
W. Chen
Department of Aerospace and Mechanical Engineering, The University of Arizona, Tucson, AZ 85721-0119
Search for other works by this author on:
B. Song
Department of Aerospace and Mechanical Engineering, The University of Arizona, Tucson, AZ 85721-0119
e-mail: bosong@u.arizona.edu
W. Chen
Department of Aerospace and Mechanical Engineering, The University of Arizona, Tucson, AZ 85721-0119
e-mail: weinong@u.arizona.edu
Contributed by the Materials Division for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received by the Materials Division August 5, 2003; revision received December 17, 2003. Associate Editor: A. M. Rajendran.
J. Eng. Mater. Technol. Apr 2004, 126(2): 213-217 (5 pages)
Published Online: March 18, 2004
Article history
Received:
August 5, 2003
Revised:
December 17, 2003
Online:
March 18, 2004
Citation
Song, B., and Chen, W. (March 18, 2004). "Dynamic Compressive Behavior of EPDM Rubber Under Nearly Uniaxial Strain Conditions ." ASME. J. Eng. Mater. Technol. April 2004; 126(2): 213–217. https://doi.org/10.1115/1.1651097
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