NOTE: This item is not available outside the Texas A&M University network. Texas A&M affiliated users who are off campus can access the item through NetID and password authentication or by using TAMU VPN. Non-affiliated individuals should request a copy through their local library's interlibrary loan service.
Determining crack-tip stress-field parameters from mixed-mode displacement fields
dc.creator | Matsumoto, Kay Yuri | |
dc.date.accessioned | 2012-06-07T22:41:43Z | |
dc.date.available | 2012-06-07T22:41:43Z | |
dc.date.created | 1995 | |
dc.date.issued | 1995 | |
dc.identifier.uri | http://hdl.handle.net/1969.1/ETD-TAMU-1995-THESIS-M3794 | |
dc.description | Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the item. | en |
dc.description | Includes bibliographical references. | en |
dc.description | Issued also on microfiche from Lange Micrographics. | en |
dc.description.abstract | The accurate determination of crack-tip stress-field parameters from experimentally obtained displacement patterns is often complicated by the presence of displacement fringes which are not related to the crack-tip field of interest. The main objective of this thesis is to determine if an overdeterministic, multiple-point, least-squares solution algorithm is able to accurately determine stress-field parameters from mixed-mode displacement fields, in spite of the presence of a superimposed non-symmetric, nonstrain-related displacement field. Numerical experiments, finite element analysis, and experimental data were used to demonstrate the effectiveness of the solution scheme. The ultimate goal for this solution method is to study the behavior of the cracks that can develop at interfaces in composites and ceramics after prolonged exposure to elevated temperatures and adverse environments. The local crack-tip stress field in these cases will have a Mode II component even when the global loading is purely tensile in nature. | en |
dc.format.medium | electronic | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_US | |
dc.publisher | Texas A&M University | |
dc.rights | This thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use. | en |
dc.subject | mechanical engineering. | en |
dc.subject | Major mechanical engineering. | en |
dc.title | Determining crack-tip stress-field parameters from mixed-mode displacement fields | en |
dc.type | Thesis | en |
thesis.degree.discipline | mechanical engineering | en |
thesis.degree.name | M.S. | en |
thesis.degree.level | Masters | en |
dc.type.genre | thesis | en |
dc.type.material | text | en |
dc.format.digitalOrigin | reformatted digital | en |
Files in this item
This item appears in the following Collection(s)
-
Digitized Theses and Dissertations (1922–2004)
Texas A&M University Theses and Dissertations (1922–2004)
Request Open Access
This item and its contents are restricted. If this is your thesis or dissertation, you can make it open-access. This will allow all visitors to view the contents of the thesis.