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oai:www.ideals.illinois.edu:2142/22719 2023-07-10 col_2142_5131 com_2142_5130

Kim, Kyung-Suk Yang, Mingfa 2011-05-07T13:49:13Z 2011-05-07T13:49:13Z 10000-01-01 1991 Plane strain problems for an interface crack, with two interface shear yield zones and one crack-face contact zone, and for a crack parallel to an interface between dissimilar materials, with crack-face contact zone near one of the crack tips, are studied. These interface crack and subinterface crack problems are formulated as systems of nonlinear Cauchy-type singular integral equations which are solved numerically using Erdogan and Gupta' s (1972) method. The physically pathological features of interpenetration of the crack faces and oscillation of the near tip fields are eliminated in the solutions by accounting for plastic deformation of the interlayer and contact of the crack faces. The solutions predict that for an interface crack or a subinterface crack in a combined normal and shear stress field, the crack may extend even when the normal stress is compressive. The behavior of a subinterface crack depends on both Dundurs parameters $\alpha$ and $\beta$ rather than only on $\beta$ for an interface crack. The behavior of the cracks can be determined from the interaction of the singularities at the crack tips caused by the normal and shear stress fields. Made available in DSpace on 2011-05-07T13:49:13Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9136771.pdf: 3761033 bytes, checksum: f6061db3fa376d04341150361682cd16 (MD5) Previous issue date: 1991 Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:59:32Z Item is restricted indefinitely. Restriction data tranferred 2014-07-01T11:28:05-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission ETDs are only available to UIUC Users without author permission U of I Only AAI9136771 (UMI)AAI9136771 http://hdl.handle.net/2142/22719 eng Copyright 1991 Yang, Mingfa Engineering, Mechanical Analysis of interface and subinterface cracks with crack-face contact and interface shear yield zones text Engineering, Mechanical Engineering, Mechanical University of Illinois at Urbana-Champaign Dissertation Ph.D.