ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 6

Mechanical Behavior of Polymers PBXW-128 and PBXN-110 Under Uniaxial and Multiaxial Compression at Different Strain Rates and Temperatures

Çolak, ÖÜ
Yildiz Technical University, Istanbul, Turkey

(Received 15 September 2003; accepted 10 March 2004)

Abstract

The influence of strain rate, temperature, and confining pressure on the mechanical behavior of PBXN-110 binder “inert” (hydroxy-terminated polybutadiene (HTPB)) and PBXW-128 simulant “inert,” which is mixed with small particles of sugar, approximately 50 % by weight, is presented in this paper. The polymer PBXN-110 is used as the matrix for the particle-reinforced polymer composite (PBXW-128); the latter is the mock or inert equivalent of actual explosive material. Stress-strain response of both polymeric materials under uniaxial compression is found to be dependent on the strain rate. On one hand, it is observed that PBXW-128 exhibits temperature-dependent behavior, while the mechanical response of PBXN-110 is not significantly affected at temperatures above the glass transition temperature. Compression experiments in the presence of confining pressure reveal that the stress-strain response of each material is rate insensitive.

Keywords:
polymeric materials, rate dependency, temperature effect, compression, confining pressure, hydroxyl-terminated polybutadiene

Paper ID: JTE12249
DOI: 10.1520/JTE12249
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