Research Article
Apr 1980
Stable Growth of Surface Cracks
Authors: George C. Sih, M.ASCE, and Bruce V. KieferAuthor Affiliations
Publication: Journal of the Engineering Mechanics Division
Volume 106, Issue 2
Abstract
This paper describes the results of a theoretical study of the stable growth of a part-through crack emanating from a free surface. A three-dimensional finite element program, incorporated with enriched elements at the crack border, is developed to determine the stresses or displacements, or both. Increments of crack growth are predicted by application of the strain energy density theory assuming that the crack profile coincides with the path of minimum strain energy density function, dW/dV. A preset value of (dW/dV)c is used to develop various crack profiles under stable growth while a critical strain energy density factor, Sc=rc(dW/dV)c, is assumed to determine global instability that corresponds to the onset of rapid crack propagation.
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Published In
Journal of the Engineering Mechanics Division
Volume 106 • Issue 2 • April 1980
Pages: 245 - 253
Copyright
© 1980 American Society of Civil Engineers.
History
Published in print: Apr 1980
Published online: Feb 3, 2021
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Authors
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George C. Sih, M.ASCE
Prof. of Mechanics and Dir., Inst. of Fracture and Solid Mechanics, Lehigh Univ., Bethlehem, Pa.
Bruce V. Kiefer
Research Engr., Bethlehem Steel Corp., Bethlehem, Pa.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.