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An analysis for crack layer stabilityThe problem of uncontrolled crack propagation and crack arrest is considered with respect to crack layer (CL) translational stability. CL propagation is determined by the difference between the energy release rate and the amount of energy required for material transformation, and necessary and sufficient conditions for CL instability are derived. CL propagation in polystyrene is studied for two cases. For the case of remotely applied fixed load fatigue, the sufficient condition of instability is shown to be met before the necessary condition, and the necessary condition controls the stability. For the fixed displacement case, neither of the instability conditions are met, and CL propagation remains stable, resulting in crack arrest.
Document ID
19870041708
Document Type
Reprint (Version printed in journal)
Authors
Sehanobish, K. (Case Western Reserve Univ. Cleveland, OH, United States)
Botsis, J. (Case Western Reserve Univ. Cleveland, OH, United States)
Moet, A. (Case Western Reserve Univ. Cleveland, OH, United States)
Chudnovsky, A. (Case Western Reserve University Cleveland, OH, United States)
Date Acquired
August 13, 2013
Publication Date
September 1, 1986
Publication Information
Publication: International Journal of Fracture
Volume: 32
ISSN: 0376-9429
Subject Category
STRUCTURAL MECHANICS
Funding Number(s)
CONTRACT_GRANT: NAG3-585
Distribution Limits
Public
Copyright
Other