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Time-Dependent Failure of Viscoelastic Materials Under Cyclic Loads

Knauss, W. G. (1966) Time-Dependent Failure of Viscoelastic Materials Under Cyclic Loads. In: Interagency Chemical Rocket Propulsion Group, Mechanical Behavior Working Group 5th Meeting. Vol.I. Chemical Propulsion Information Agency , Silver Spring, MD, pp. 597-614.

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The problem of failure in viscoelastic materials under cyclic strain histories is treated theoretically by using a fracture model based on the theory of rate processes. Failure times in constant, uniaxial strain tests are compared with failure times encountered in sinusoidal strain histories. The dependence of the latter on the mean strain, the size of the strain variation and its frequency is illustrated. It is pointed out that for certain conditions a difference in the failure times in constant or cyclic strain histories may be masked entirely by statistical data scatter. Finally the failure of solid propellant fuels under cyclic loading is discussed in the light of the results derived for a continuum rubber.

Item Type:Book Section
Additional Information:CPIA Publication 119, Vol. I. This work was supported by the National Aeronautics and Space Administration through Research Grant NsG-172-60.
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Record Number:CaltechAUTHORS:20151125-113438967
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:62431
Deposited On:25 Nov 2015 19:58
Last Modified:03 Oct 2019 09:18

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