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Influence of Cracking Direction on Interfacial Fracture in Bicrystals With Symmetric Tilt Boundary

Mohan, R. and Ortiz, M. and Shih, C. F. (1992) Influence of Cracking Direction on Interfacial Fracture in Bicrystals With Symmetric Tilt Boundary. Journal of Applied Mechanics, 59 (1). pp. 84-91. ISSN 0021-8936. doi:10.1115/1.2899469. https://resolver.caltech.edu/CaltechAUTHORS:20171213-163502078

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Abstract

Recent experiments by Wang (1990) on copper bicrystals with a [110] symmetric tilt of 38.9 degrees have shown that the mode of fracture of these bicrystals, i.e., whether fracture is of a ductile or brittle nature, depends on the direction of cracking. An analysis of this effect within the framework of continuum crystal plasticity is presented. The formulation accounts for finite deformations and finite lattice rotations, as well as for the full three-dimensional collection of slip systems in FCC crystals. Our results indicate that, whereas the level of stress ahead of the crack tip is similar for the ductile and brittle cracking directions, the sizes of the plastic regions differ significantly in the two cases.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://dx.doi.org/10.1115/1.2899469DOIArticle
http://appliedmechanics.asmedigitalcollection.asme.org/article.aspx?articleid=1410577PublisherArticle
ORCID:
AuthorORCID
Ortiz, M.0000-0001-5877-4824
Additional Information:© 1992 American Society of Mechanical Engineers. Manuscript received by the ASME Applied Mechanics Division, Sept. 18, 1990; final revision, Mar. 15, 1991. The support of the National Science Foundation through the Materials Research Group at Brown University, Grant DMR-9002994, is gratefully acknowledged. We are also indebted to J. R. Rice and M. Saeedvafa for making available to us the results of their computations.
Group:GALCIT
Funders:
Funding AgencyGrant Number
UNSPECIFIEDDMR-9002994
Issue or Number:1
DOI:10.1115/1.2899469
Record Number:CaltechAUTHORS:20171213-163502078
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20171213-163502078
Official Citation:Mohan R, Ortiz M, Shih CF. Influence of Cracking Direction on Interfacial Fracture in Bicrystals With Symmetric Tilt Boundary. ASME. J. Appl. Mech. 1992;59(1):84-91. doi:10.1115/1.2899469.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:83908
Collection:CaltechAUTHORS
Deposited By: Lydia Suarez
Deposited On:14 Dec 2017 18:53
Last Modified:15 Nov 2021 20:15

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