Dynamic Deformation Behavior of Soft Materials at the Low Temperature Using SHPB Technique and Pulse Shaper

Abstract:

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This paper presents a modified Split Hopkinson Pressure Bar(SHPB) technique to obtain compressive stress-strain data for a rubber material. An experimental technique with a modified the conventional SHPB has been developed for measuring the compressive stress strain responses of materials with low mechanical impedance and low compressive strengths such as a rubber. This paper uses an aluminum pressure bar to achieve a closer impedance match between the pressure bar and the specimen materials. In addition, a pulse shaper is utilized to lengthen the rising time of the incident pulse to ensure stress equilibrium and homogeneous deformation of a rubber. It is found that the modified technique can determine the dynamic deformation behavior of rubbers under various conditions such as high strain rate and low temperature effects.

Info:

Periodical:

Key Engineering Materials (Volumes 326-328)

Edited by:

Soon-Bok Lee and Yun-Jae Kim

Pages:

1577-1580

DOI:

10.4028/www.scientific.net/KEM.326-328.1577

Citation:

O. S. Lee et al., "Dynamic Deformation Behavior of Soft Materials at the Low Temperature Using SHPB Technique and Pulse Shaper", Key Engineering Materials, Vols. 326-328, pp. 1577-1580, 2006

Online since:

December 2006

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Price:

$35.00

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