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Materials Science

, Volume 35, Issue 3, pp 299–309 | Cite as

A unified model of initiation and growth of fatigue macrocracks. part 3. stage of growth of a macrocrack

  • O. P. Ostash
  • V. V. Panasyuk
Article

Abstract

From a common viewpoint, fatigue fracture of materials is simulated by the process of initiation of an initial macrorack of lengtha i =d* (d* is the constant of the material), which is successively (stepwise) repeated at the stage of its growth. As a result, the diagram “range of local stresses-period of initiation of an initial macrocrack” or ”range of local strains-period of initiation of an initial macrocrack,” which was determined for notched specimens, can be used for the construction of the diagram “growth rate of a macrocrack-range of the stress intensity factor” or “growth rate of a macrocrack-range of local strains,” respectively, if the crack is presented as a sharp notch with effective rounded radius ρeff=d* of the tip.

Keywords

Growth Rate Fatigue Stress Intensity Structural Material Intensity Factor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© Kluwer Academic/Plenum Publishers 2000

Authors and Affiliations

  • O. P. Ostash
  • V. V. Panasyuk

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