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Fatigue Failure in Linearly Viscoelastic Masterials

Williams, M. L. and Knauss, W. G. and Wagner, F. R. (1966) Fatigue Failure in Linearly Viscoelastic Masterials. In: Interagency Chemical Rocket Propulsion Group, Mechanical Behavior Working Group 5th Meeting. Vol.I. Chemical Propulsion Information Agency , Silver Spring, MD, pp. 681-687. http://resolver.caltech.edu/CaltechAUTHORS:20151125-113158676

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Abstract

The thermodynamic approach to the fracture of linearly viscoelastic materials presented earlier is extended to include fatigue. The theoretical analysis of the growth of an internal spherical flaw due to a uniformly distributed, oscillatory input of displacement in the radial direction predicts a growth-rest type of flaw growth which depends upon the properties of the media and the loading frequency. Comparison of these results with experimental crack growth data for a pre-cracked sheet specimen subjected to an oscillatory displacement input discloses a qualitative similarity in behavior. It is, therefore, believed that the analytical model employed is representative of real flaw behavior and that its study can reveal the main features of macroscopic flaw-growth.


Item Type:Book Section
Additional Information:CPIA Publication 119, Vol. I. A substantial portion of the work reported herein was supported by the National Aeronautics and Space Administration under Research Grant No. NsG 172-60 and Contract No. NGR-45-003-029.
Group:GALCIT
Funders:
Funding AgencyGrant Number
NASANsG 172-60
NASANGR-45-003-029
Record Number:CaltechAUTHORS:20151125-113158676
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20151125-113158676
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:62430
Collection:CaltechAUTHORS
Deposited By: Kristin Buxton
Deposited On:25 Nov 2015 19:54
Last Modified:14 Sep 2016 00:05

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