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Uniform Model and Fracture Criteria of Annularly Breached Bars under Bending

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Abstract:

A uniform model, in which the crack, V-notch, U-notch and arc are described as breach uniformly, is put forward in this paper. The tip radius, depth and field angle of breach are regarded as the parameter of annularly breached bar. The stress field and displacement field near the tip of the annularly breached bar under bending, in which takes fα(a/b) as its descriptive parameter, was given. All forms of breaches according to the change of tip radius, depth and field angle were discussed. The effects of parameters on fα(a/b) in bending were analyzed. The criteria for the safety design and fracture design both of which on fα(a/b) were obtained. The results not only can be applied widely to anti-fracture design but also be used for reference in anti-fatigued design in product lifecycle management.

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Periodical:

Key Engineering Materials (Volumes 321-323)

Pages:

751-754

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.321-323.751

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Online since:

October 2006

Authors:

You Tang Li, Zhi Yuan Rui, Chang Feng Yan

Keywords:

Annularly Breached Bar, Anti-Fractured Design, Bending, Fracture Criterion, Product Lifecycle Management (PLM), Uniform Model

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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