Paper Title:
Some Applications of Fractal Fracture Mechanics to Describe the Fatigue Behaviour of Materials
  Abstract

As is well-known, fatigue limit, threshold stress intensity range and fatigue crack growth rate are influenced by the specimen or structure size. Limited information on size effect is available in the literature. In the present paper, by employing some concepts of fractal geometry, new definitions of fatigue limit, fracture energy and stress intensity factor, based on physical dimensions different from the classical ones, are discussed. Then, size-dependent laws for fatigue limit, threshold stress intensity range and fatigue crack growth rate are proposed. Some experimental results are examined in order to show how to apply such theoretical scaling laws.

  Info
Periodical
Key Engineering Materials (Volumes 378-379)
Edited by
Dr. T. S. Srivatsan, FASM, FASME
Pages
355-370
DOI
10.4028/www.scientific.net/KEM.378-379.355
Citation
A. Carpinteri, A. Spagnoli, S. Vantadori, "Some Applications of Fractal Fracture Mechanics to Describe the Fatigue Behaviour of Materials", Key Engineering Materials, Vols. 378-379, pp. 355-370, 2008
Online since
March 2008
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Price
$32.00
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