Analysis of stiffened membranes by the finite element method
| dc.contributor.advisor | Kamel | en_US |
| dc.contributor.author | ABDEL-DAYEM, LAILA HASSAN. | |
| dc.creator | ABDEL-DAYEM, LAILA HASSAN. | en_US |
| dc.date.accessioned | 2011-10-31T18:35:32Z | |
| dc.date.available | 2011-10-31T18:35:32Z | |
| dc.date.issued | 1983 | en_US |
| dc.identifier.uri | http://hdl.handle.net/10150/187292 | |
| dc.description.abstract | A survey for the different variational principles and their corresponding finite element model formulations is given. New triangular finite elements for the analysis of stiffened panels are suggested. The derivation of the stiffness matrix for these elements is based on the hybrid stress model. The boundary deflections for these elements are assumed linear. These elements are different in two aspects, the degree of the internal stress polynomials and the number and location of the stiffeners. Numerical studies are carried out and results are compared to the theoretical solutions given by Kuhn as well as to results of the compatible model. Convergence of the stress in stiffeners to the actual solution through mesh refinement is studied. Jumps in the stiffener stresses given by the new elements exist. The use of special Lagrangian elements at the interelement boundaries to eliminate some of these jumps is studied. | |
| dc.language.iso | en | en_US |
| dc.publisher | The University of Arizona. | en_US |
| dc.rights | Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. | en_US |
| dc.subject | Finite element method. | en_US |
| dc.subject | Panel analysis. | en_US |
| dc.subject | Stress concentration -- Mathematical models. | en_US |
| dc.title | Analysis of stiffened membranes by the finite element method | en_US |
| dc.type | text | en_US |
| dc.type | Dissertation-Reproduction (electronic) | en_US |
| dc.identifier.oclc | 690162662 | en_US |
| thesis.degree.grantor | University of Arizona | en_US |
| thesis.degree.level | doctoral | en_US |
| dc.contributor.committeemember | Richard, Ralph M. | en_US |
| dc.contributor.committeemember | Anderson, Roger A. | en_US |
| dc.identifier.proquest | 8401255 | en_US |
| thesis.degree.discipline | Aerospace and Mechanical Engineering | en_US |
| thesis.degree.discipline | Graduate College | en_US |
| thesis.degree.name | Ph.D. | en_US |
| dc.description.note | This item was digitized from a paper original and/or a microfilm copy. If you need higher-resolution images for any content in this item, please contact us at repository@u.library.arizona.edu. | |
| dc.description.admin-note | Original file replaced with corrected file July 2023. | |
| refterms.dateFOA | 2018-09-03T12:09:21Z | |
| html.description.abstract | A survey for the different variational principles and their corresponding finite element model formulations is given. New triangular finite elements for the analysis of stiffened panels are suggested. The derivation of the stiffness matrix for these elements is based on the hybrid stress model. The boundary deflections for these elements are assumed linear. These elements are different in two aspects, the degree of the internal stress polynomials and the number and location of the stiffeners. Numerical studies are carried out and results are compared to the theoretical solutions given by Kuhn as well as to results of the compatible model. Convergence of the stress in stiffeners to the actual solution through mesh refinement is studied. Jumps in the stiffener stresses given by the new elements exist. The use of special Lagrangian elements at the interelement boundaries to eliminate some of these jumps is studied. |
