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Three-dimensional effects influencing failure in bend-free, variable stiffness composite pressure vessels

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dc.contributor.author Daghighi, Shahrzad
dc.contributor.author Weaver, Paul M.
dc.date.accessioned 2021-02-09T10:36:11Z
dc.date.issued 2020
dc.identifier.uri http://hdl.handle.net/10344/9755
dc.description peer-reviewed en_US
dc.description The full text of this article will not be available in ULIR until the embargo expires on the 28/11/2022
dc.description.abstract Pressure vessels enable liquids and gases to be stored and transported safely, finding pervasive use in many industries. These types of structure can be manufactured into many different shapes and from various materials to satisfy the requirements of their specific applications. Maximum allowable pressure is an important factor that should be considered carefully in the design process. Bend-free pressure vessels, that are enabled by variable stiffness composite designs, can even out in-plane stress distributions in the through-thickness direction thereby increasing overall load carrying capacity often accompanied by significant weight reduction. Bend-free composite vessels can therefore be considered to be possible candidates for the next generation of pressure vessels and therefore it is important to study their failure performance, often driven by safety reasons. In this study, the maximum allowable internal pressure is determined for bend-free ellipsoidal pressure vessels exploiting variable stiffness properties, using first-ply failure based on both Tsai-Wu and the recently proposed three-dimensional invariant-based failure criteria with performance subsequently compared against conventional constant stiffness, composite vessels. Parametric studies are then performed to provide physical insight and also to evaluate the effect of various material properties on the difference in failure load prediction found by these criteria. en_US
dc.language.iso eng en_US
dc.publisher Elsevier en_US
dc.relation 15RP2773 en_US
dc.relation.ispartofseries Composite Structures;113346
dc.relation.uri https://doi.org/10.1016/j.compstruct.2020.113346
dc.rights This is the author’s version of a work that was accepted for publication in Composite Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Composite Structures,113346 https://doi.org/10.1016/j.compstruct.2020.113346 en_US
dc.subject failure en_US
dc.subject 3D effects; bend-free en_US
dc.subject variable stiffness en_US
dc.subject composite en_US
dc.subject pressure vessel en_US
dc.title Three-dimensional effects influencing failure in bend-free, variable stiffness composite pressure vessels en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1016/j.compstruct.2020.113346
dc.contributor.sponsor SFI en_US
dc.relation.projectid 15/RP/2773 en_US
dc.date.embargoEndDate 2022-11-28
dc.embargo.terms 2022-11-28 en_US
dc.rights.accessrights info:eu-repo/semantics/embargoedAccess en_US


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