{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/64728"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/64728","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"Rail shear testing of composite materials: analysis and experiment","abstract":"This report discusses the results of both an experimental test program and a finite element analysis of selected graphite/polyimide rail-shear test specimens. The two-dimensional finite element analysis includes both mechanical and thermal loading (differential expansion) of the specimens and their elastic rails. Parameters in this analysis of unidirectional and symmetric angle-ply laminates include ply layup angles, specimen length-to-width ratio, the effect of flexible rails and the method of load introduction to the specimen. Results of the analysis include shear and normal stress distributions. Two types of tensile rail shear fixtures were investigated experimentally: a uniform thickness, bolted rail shear fixture, loaded diagonally across the specimen test section; and a tapered-thickness, bonded rail shear fixture, loaded axially along the centerline of the specimen test section. Test results include room temperature and 600°F (315°C) strain data taken from various points on the specimen test section during loading.","abstract_html":"This report discusses the results of both an experimental test program and a finite element analysis of selected graphite/polyimide rail-shear test specimens. The two-dimensional finite element analysis includes both mechanical and thermal loading (differential expansion) of the specimens and their elastic rails. Parameters in this analysis of unidirectional and symmetric angle-ply laminates include ply layup angles, specimen length-to-width ratio, the effect of flexible rails and the method of load introduction to the specimen. Results of the analysis include shear and normal stress distributions. Two types of tensile rail shear fixtures were investigated experimentally: a uniform thickness, bolted rail shear fixture, loaded diagonally across the specimen test section; and a tapered-thickness, bonded rail shear fixture, loaded axially along the centerline of the specimen test section. Test results include room temperature and 600°F (315°C) strain data taken from various points on the specimen test section during loading.","abstract_has_math":false,"creators":["Garcia, Ramon"],"institution":"Virginia Polytechnic Institute and State University","degree_name":"Master of Science","degree_level":"masters","degree_discipline":"Aerospace and Ocean Engineering","degree_department":"Aerospace and Ocean Engineering","school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1978,"date_issued":"1978","date_published":"1978","updated_at":"2026-07-22T22:19:37Z","subjects":[],"languages":["en"],"rights":["In Copyright"],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10919/64728","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.department","label":"Department","values":["Aerospace and Ocean Engineering"]},{"key":"dc:creator","label":"Author","values":["Garcia, Ramon"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2016-02-01T18:05:51Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2016-02-01T18:05:51Z"]},{"key":"dc:date.issued","label":"Date","values":["1978"]},{"key":"dc:publisher","label":"Institution","values":["Virginia Polytechnic Institute and State University"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.dcmitype","label":"Dc Type Dcmitype","values":["Text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Aerospace and Ocean Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Virginia Polytechnic Institute and State University"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["In Copyright"]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/10919/64728"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["This report discusses the results of both an experimental test program and a finite element analysis of selected graphite/polyimide rail-shear test specimens. The two-dimensional finite element analysis includes both mechanical and thermal loading (differential expansion) of the specimens and their elastic rails. Parameters in this analysis of unidirectional and symmetric angle-ply laminates include ply layup angles, specimen length-to-width ratio, the effect of flexible rails and the method of load introduction to the specimen. Results of the analysis include shear and normal stress distributions. Two types of tensile rail shear fixtures were investigated experimentally: a uniform thickness, bolted rail shear fixture, loaded diagonally across the specimen test section; and a tapered-thickness, bonded rail shear fixture, loaded axially along the centerline of the specimen test section. Test results include room temperature and 600°F (315°C) strain data taken from various points on the specimen test section during loading."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Master of Science"]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Rail shear testing of composite materials: analysis and experiment"]}]}],"canonical_facts":{"dc:contributor.department":["Aerospace and Ocean Engineering"],"dc:creator":["Garcia, Ramon"],"dc:date.accessioned":["2016-02-01T18:05:51Z"],"dc:date.available":["2016-02-01T18:05:51Z"],"dc:date.issued":["1978"],"dc:description.abstract":["This report discusses the results of both an experimental test program and a finite element analysis of selected graphite/polyimide rail-shear test specimens. The two-dimensional finite element analysis includes both mechanical and thermal loading (differential expansion) of the specimens and their elastic rails. Parameters in this analysis of unidirectional and symmetric angle-ply laminates include ply layup angles, specimen length-to-width ratio, the effect of flexible rails and the method of load introduction to the specimen. Results of the analysis include shear and normal stress distributions. Two types of tensile rail shear fixtures were investigated experimentally: a uniform thickness, bolted rail shear fixture, loaded diagonally across the specimen test section; and a tapered-thickness, bonded rail shear fixture, loaded axially along the centerline of the specimen test section. 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