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Design, analysis, and validation of composite c-channel beams

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dc.contributor.advisor Parmigiani, John
dc.creator Koski, William C.
dc.date.accessioned 2012-10-09T22:04:59Z
dc.date.available 2014-10-05T08:00:08Z
dc.date.copyright 2012-09-06
dc.date.issued 2012-09-06
dc.identifier.uri http://hdl.handle.net/1957/34292
dc.description Graduation date: 2013 en_US
dc.description Access restricted to the OSU Community at author's request from Oct. 5, 2012 - Oct. 5, 2014
dc.description.abstract A lightweight carbon fiber reinforced polymer (CFRP) c-channel beam was previously designed using analytical theory and finite element analysis and subsequently manufactured through a pultrusion process. Physical testing revealed the prototype did not meet the bending and torsional stiffness of the beam model. An investigation revealed that the manufactured prototype had lower fiber content than designed, compacted geometry, an altered ply layup, missing plies, and ply folds. Incorporating these changes into the beam model significantly improved model-experiment agreement. Using what was learned from the initial prototype, several new beam designs were modeled that compare the cost per weight-savings of different composite materials. The results of these models show that fiberglass is not a viable alternative to CFRP when designing for equivalent stiffness. Standard modulus carbon was shown to have slightly lower cost per-weight savings than intermediate modulus carbon, although intermediate modulus carbon saves more weight overall. Core materials, despite potential weight savings, were ruled out as they do not have the crush resistance to handle the likely clamp loads of any attaching bolts. Despite determining the ideal materials, the manufactured cost per weight-savings of the best CFRP beam design was about double the desired target. en_US
dc.language.iso en_US en_US
dc.subject Composites en_US
dc.subject CFRP en_US
dc.subject.lcsh Carbon fiber-reinforced plastics -- Testing en_US
dc.subject.lcsh Carbon fiber-reinforced plastics -- Mechanical properties en_US
dc.title Design, analysis, and validation of composite c-channel beams en_US
dc.type Thesis/Dissertation en_US
dc.degree.name Master of Science (M.S.) in Mechanical Engineering en_US
dc.degree.level Master's en_US
dc.degree.discipline Engineering en_US
dc.degree.grantor Oregon State University en_US
dc.contributor.committeemember Bay, Brian
dc.contributor.committeemember Albertani, Roberto
dc.contributor.committeemember Higgins, Chad
dc.description.peerreview no en_us
dc.description.embargo 2014-10-05
dc.description.embargopolicy OSU Users en

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