Graduate Thesis Or Dissertation

 

An analytical model for fatigue crack propagation Public Deposited

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/2227ms02s

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  • Beginning with the basic equations from the theory of elasticity and employing a model of crack propagation based on the concept of a constant plastic energy absorption per unti of crack extension, the commonly accepted power law of fatigue crack propagation was derived. This derivation uses an extension of the Dugdale model for the calculation of plastic energy absorption into the zone of gross yielding preceding the crack tip. This Dugdale model together with a superposition technique are employed to compute the total plastic energy over a number of cyclic loadings. The power law relationship which results from this development is compared with experimental crack growth data to evaluate the material constant, the crack extension force.
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  • File scanned at 300 ppi (Monochrome) using Capture Perfect 3.0.82 on a Canon DR-9080C 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 Kirsten Clark(kcscannerosu@gmail.com) on 2013-11-22T20:32:57Z (GMT) No. of bitstreams: 1 AndersonJames1975.pdf: 513408 bytes, checksum: 4ae6a1f933139ffb06abe386af8d22c9 (MD5)
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  • description.provenance : Made available in DSpace on 2013-11-22T20:32:57Z (GMT). No. of bitstreams: 1 AndersonJames1975.pdf: 513408 bytes, checksum: 4ae6a1f933139ffb06abe386af8d22c9 (MD5) Previous issue date: 1974-12-05

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