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Mixed mode crack-tip fields in monolithic ceramics

Ortiz, M. and Giannakopoulos, A. E. (1990) Mixed mode crack-tip fields in monolithic ceramics. International Journal of Solids and Structures, 26 (7). pp. 705-723. ISSN 0020-7683. doi:10.1016/0020-7683(90)90002-D.

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Asymptotic and full field finite element solutions are given for a semi-infinite planar crack in a monolithic ceramic subjected to remote mixed mode loading. The material is assumed to undergo damage in the form of elastic degradation as a result of stable microcracking. Microcracks are assumed to be preferentially oriented normal to the direction of maximum tension. An outcome of the analysis is that microcracks shield the crack tip less effectively under mode II than under mode I conditions. Other issues addressed concern the relation between the mixities of the applied loads and the near-tip fields, the path-independence of the J integral, the validity of deformation theories of damage under proportional loading, and the conditions for dominance of the singular near-tip fields.

Item Type:Article
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Ortiz, M.0000-0001-5877-4824
Additional Information:© 1990 Elsevier. Received 28 July 1988, Revised 21 December 1988. The support of the Office of Naval Research through grant N00014-85-K-0720 is gratefully acknowledged.
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-85-K-0720
Issue or Number:7
Record Number:CaltechAUTHORS:20180103-140631024
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Official Citation:M. Ortiz, A.E. Giannakopoulos, Mixed mode crack-tip fields in monolithic ceramics, In International Journal of Solids and Structures, Volume 26, Issue 7, 1990, Pages 705-723, ISSN 0020-7683, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:84065
Deposited By: Lydia Suarez
Deposited On:03 Jan 2018 22:15
Last Modified:15 Nov 2021 20:16

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