Fibers Microbuckling of Uncured Carbon-Epoxy Prepreg in Bending Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/zg64tp389

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Prepreg is widely used in composite manufacturing with advanced composites such as carbon and aramid. The material is characterized by a degree of flexibility (drape) and stickiness (tack), which allows an efficient layup on molds with complex shapes. However, axial instability of compressed fibers during the molding process may occur, potentially causing fiber microbuckling and wrinkling. The phenomenon could adversely affect manufacturing efficiency, product design and the quality of manufacturing laminates. This thesis will present semi-empirical estimations of fiber microbuckling, supported by experimental validation measuring the geometry of compressed fibers under bending. Results show that microbuckling wavelength predictions using Wang’s theoretical model are in good agreement with experimental results. In addition, the limited bending capability of uncured carbon-epoxy prepreg without buckling or wrinkling on compressed side is confirmed.
Resource Type
Date Available
Date Copyright
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Committee Member
Academic Affiliation
Non-Academic Affiliation
Keyword
Subject
Rights Statement
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Approved for entry into archive by Laura Wilson(laura.wilson@oregonstate.edu) on 2017-01-26T17:19:57Z (GMT) No. of bitstreams: 1 GuoYizhi2017.pdf: 1542821 bytes, checksum: 1202bf7edae0a094aaad5b15cb5869f0 (MD5)
  • description.provenance : Submitted by Yizhi Guo (guoyiz@oregonstate.edu) on 2016-12-31T20:41:22Z No. of bitstreams: 1 GuoYizhi2017.pdf: 1542821 bytes, checksum: 1202bf7edae0a094aaad5b15cb5869f0 (MD5)
  • description.provenance : Submitted by Yizhi Guo (guoyiz@oregonstate.edu) on 2016-12-21T23:03:57Z No. of bitstreams: 1 GuoYizhi2017.pdf: 1882266 bytes, checksum: 9dace2ab57931784fac387b5c3ae1b4f (MD5)
  • description.provenance : Approved for entry into archive by Julie Kurtz(julie.kurtz@oregonstate.edu) on 2017-01-17T21:09:46Z (GMT) No. of bitstreams: 1 GuoYizhi2017.pdf: 1542821 bytes, checksum: 1202bf7edae0a094aaad5b15cb5869f0 (MD5)
  • description.provenance : Rejected by Julie Kurtz(julie.kurtz@oregonstate.edu), reason: Hi Yizhi, Rejecting because the changes were not made to the Approval page. The first signature line should be changed to - Major Professor, representing Mechanical Engineering Second signature line should be change to - Head of the School of Mechanical, Industrial, and Manufacturing Engineering. Everything else looks good. Once revised, log back into ScholarsArchive and go to the upload page. Replace the attached file with the revised PDF and resubmit. Thanks, Julie on 2016-12-27T19:32:47Z (GMT)
  • description.provenance : Made available in DSpace on 2017-01-26T17:19:57Z (GMT). No. of bitstreams: 1 GuoYizhi2017.pdf: 1542821 bytes, checksum: 1202bf7edae0a094aaad5b15cb5869f0 (MD5) Previous issue date: 2016-12-08

Relationships

In Administrative Set:
Last modified: 08/04/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items