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On the mechanical properties of an H-C rubber

Knauss, Wolfgang G. (1963) On the mechanical properties of an H-C rubber. In: Bulletin of the 2nd meeting: Interagency Chemical Rocket Propulsion Group, Working Group on Mechanical Behavior, November 19-21, 1963, Hill Air Force Base, Utah. CPIA publication. No.27. , Silver Spring, MD, pp. 179-197.

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The material properties of H-C binder including dynamic shear compliance, relaxation modulus, creep compliance, ultimate stress and ultimate strain are reported. Further useful information in the form of Modified Power Law and Prony Series curve fits are included as well as a master curve of reduced stress vs. strain. All tests are performed using standard procedures; however some inconsistency in material properties has been found. It was further determined that the time-temperature shift principle is not directly applicable in its simplest form; however, upon postulating two molecular mechanisms responsible for gross deformations it is found that each one can be associated with a different characteristic glass transition temperature such that, e.g. the dynamic compliance J(w) is the sum of two compliances J_α and J_γ J(w,t) = J_α(w, T^α_glass) + J_γ(w, T^γ_glass) which individually follow the time temperature superposition principle.

Item Type:Book Section
Additional Information:This investigation was made possible in part by the National Aeronautics and Space Administration Research Grant No. NsG 172-60, GALCIT 120. Thanks are due to Mr. John Clauser and Mr. Jon Kelly of the California Institute of Technology for conducting the dynamic shear and constant strain rate tests and to Mr. Bill Moser of the Jet Propulsion Laboratory for his supervision of the dynamic compliance measurements. Special gratitude is due to Dr. Robert Landel of the Jet Propulsion Laboratory for making his test equipment so readily available, and for his personal interest and help in data reduction. It is hoped that further analysis of these material properties will be carried out with his cooperation. The cooperation of Mr. G. H. Lindsey during the revision is gratefully acknowledged. The material was obtained from the Thiokol Chemical Corporation, Huntsville, Alabama, through the courtesy of Drs. T. Neely and R. B. Kruse. The data on filled H-C rubber has been taken from reference 1.
Funding AgencyGrant Number
NASANsG 172-60, GALCIT 120
Series Name:CPIA publication
Issue or Number:27
Record Number:CaltechAUTHORS:20100519-091001010
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:18349
Deposited By: George Porter
Deposited On:24 Jun 2010 19:26
Last Modified:03 Oct 2019 01:41

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