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The development of a general fatigue crack growth predictive model

โœ Scribed by M. F. Kanninen; C. Atkinson; A. J. McEvily

Publisher
Springer Netherlands
Year
1977
Tongue
English
Weight
244 KB
Volume
13
Category
Article
ISSN
1573-2673

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โœฆ Synopsis

This report describes current progress in the development of a predictive model for fatigue crack growth under variable amplitude loading [1,2]. The work is based upon the inclined strip-yield superdislocation representation of crack tip plasticity, an extension of the idea of Atkinson and Kay [3]. The model has a number of extremely desirable features:

(I) it admits load levels that vary arbitrarily from cycle to cycle, (2) it automatically takes account of both the residual compressive stresses at the crack tip and the crack closure phenomenon, and (3) it is capable of predicting crack growth increments solely from readily available mechanical property data; thus, no disposable parameters connected with specific load spectra are required to perform crackgrowth computations using the model.

๐Ÿ“œ SIMILAR VOLUMES

Uncertainty quantification and model val
Uncertainty quantification and model validation of fatigue crack growth prediction
โœ Shankar Sankararaman; You Ling; Sankaran Mahadevan ๐Ÿ“‚ Article ๐Ÿ“… 2011 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 774 KB

This paper presents a methodology for uncertainty quantification and model validation in fatigue crack growth analysis. Several models -finite element model, crack growth model, surrogate model, etc. -are connected through a Bayes network that aids in model calibration, uncertainty quantification, a