Polyurethane impregnated Kevlar 29 fabric for coal transport railcars Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/bz60d0840

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  • Stress analysis was performed to determine the maximum stress acting on a railcar coal support-bed, using COSMOS finite element and WFM micromechanics models. The fracture strength of polyurethane impregnated Kevlar 29 fabric, proposed for integration with the railcar structure, was determined experimentally by loading the impregnated coupons in a microcomputer controlled Instron 4505. Procedures to improve the wettability of a Kevlar 29 orthogonal-weave fabric were investigated. Unimpregnated and impregnated coupons of increasing gage lengths were statically tested for tensile strength to check for gage length effect behavior. Fatigue tests were conducted to predict the stress level (endurance limit) below which the impregnated fabric bed can perform without failure for ten years of the service life. The fracture strength of the polyurethane impregnated fabric, after immersion in aqueous solutions of different pH values for seventy-five hours and in ten percent concentrated sulfuric acid solution at 212°F for ten hours, was measured.
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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 : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-12-28T22:05:44Z (GMT) No. of bitstreams: 1 SarangabanyPerumal1994.pdf: 5498078 bytes, checksum: ddf3b84328b74b7565c97f15628d9639 (MD5)
  • description.provenance : Submitted by John Valentino (valentjo@onid.orst.edu) on 2012-12-20T18:54:47Z No. of bitstreams: 1 SarangabanyPerumal1994.pdf: 5498078 bytes, checksum: ddf3b84328b74b7565c97f15628d9639 (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-12-21T21:49:19Z (GMT) No. of bitstreams: 1 SarangabanyPerumal1994.pdf: 5498078 bytes, checksum: ddf3b84328b74b7565c97f15628d9639 (MD5)
  • description.provenance : Made available in DSpace on 2012-12-28T22:05:45Z (GMT). No. of bitstreams: 1 SarangabanyPerumal1994.pdf: 5498078 bytes, checksum: ddf3b84328b74b7565c97f15628d9639 (MD5) Previous issue date: 1994-03-28

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