Notched strength analysis of tensile specimens taken from a thick, filament-wound graphite/epoxy pressure vessel

dc.contributor.authorGagnon, Paulen
dc.contributor.departmentEngineering Mechanicsen
dc.date.accessioned2020-12-15T19:11:19Zen
dc.date.available2020-12-15T19:11:19Zen
dc.date.issued1987en
dc.description.abstractAn experimental analysis of specimens taken from a thick, filament-wound composite material pressure vessel (cylinder) was performed by testing tensile coupons with various semi-elliptical surface notches. The strength of specimens with small notches was found to be notch insensitive. The strength of specimens with larger notches depended on the size of the notch. The fracture toughness of the laminate was found by applying a general fracture-toughness parameter approach. Using this value, several approaches were employed to predict failure loads. The accuracy of the approaches depended on the size of the notches. In general, the linear-elastic fracture mechanics method overpredicted the failure strength of specimens with intermediate sized notches, but predicted failure strength accurately for specimens with large notches. A strength of materials approach accurately predicted notched strength only for specimens with small notches. Notched strength was more accurately predicted for all notch sizes using an empirical approach, with the notch area used to predict failure instead of the notch depth, which was used in the linear-elastic fracture mechanics and strength of materials approaches.en
dc.description.degreeM.S.en
dc.format.extentvii, 40 leavesen
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/101373en
dc.language.isoenen
dc.publisherVirginia Polytechnic Institute and State Universityen
dc.relation.isformatofOCLC# 16367062en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1987.G337en
dc.subject.lcshComposite materials -- Testingen
dc.subject.lcshLaminated materials -- Testingen
dc.subject.lcshStrength of materialsen
dc.titleNotched strength analysis of tensile specimens taken from a thick, filament-wound graphite/epoxy pressure vesselen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineEngineering Mechanicsen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameM.S.en
Files
Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
LD5655.V855_1987.G337.pdf
Size:
3.37 MB
Format:
Adobe Portable Document Format
Collections