Composite and adhesive technology applied to chain saw guide bars Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/5h73q1162

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  • Increased competition in the market place for both occasional and professional chain saw users has led to a desire for improved performance in chain saw guide bars. One aspect of improved performance is lower bar weight. The primary focus of this research was to establish the feasibility of a lower weight, composite, chain saw guide bar. A production steel chain saw guide bar was analyzed using COSMOS finite element modeling. This analysis determined the feasibility of totally or partially replacing the steel with a lower density composite material. Classical strength of materials analytical techniques for beams in bending were used to verify the FEA models accuracy. Additionally, strain gauges were used in high stress areas to further verify the FEA models. Various fiber reinforced thermoplastic pre-pregs were considered for the prototype research. From the literature study performed, two candidate thermoplastic matrices were chosen for further evaluation. Analyses of polyetherimide and polyphenylene sulfide were performed using differential scanning calorimetry and dynamic mechanical testing. From these tests, information concerning processing temperature and ultimate end use requirements were determined. Necessary electric heaters and other apparatus were fabricated to produce composite lay-ups. Pre-preg fiber lay-up orientation was determined from the finite element analysis and wear requirements. From the analysis and testing two prototype chain saw bars were designed and then fabricated. The first bar was composed entirely of carbon reinforced polyetherimide. The second bar was a hybrid design utilizing steel side laminates adhesively bonded to a central core of carbon fiber reinforced polyphenylene sulfide. Fabricated prototype guide bars were evaluated using a production power head.
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  • File scanned at 300 ppi (Monochrome, 8-bit Grayscale, 24-bit Color) using ScandAll PRO 1.8.1 on a Fi-6670 in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
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  • description.provenance : Made available in DSpace on 2012-11-02T17:04:16Z (GMT). No. of bitstreams: 1 GabelPrestonS1996.pdf: 4867340 bytes, checksum: 8fa1dddd988bd2e130eec0f86af5976c (MD5) Previous issue date: 1996-04-25
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-11-01T20:00:17Z (GMT) No. of bitstreams: 1 GabelPrestonS1996.pdf: 4867340 bytes, checksum: 8fa1dddd988bd2e130eec0f86af5976c (MD5)
  • 1996-06
  • description.provenance : Submitted by Kaylee Patterson (kdpscanner@gmail.com) on 2012-11-01T19:30:10Z No. of bitstreams: 1 GabelPrestonS1996.pdf: 4867340 bytes, checksum: 8fa1dddd988bd2e130eec0f86af5976c (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-11-02T17:04:16Z (GMT) No. of bitstreams: 1 GabelPrestonS1996.pdf: 4867340 bytes, checksum: 8fa1dddd988bd2e130eec0f86af5976c (MD5)

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