Dislocation-based and Continuum Models of Crack tip Shielding in Fatigue

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F11%3APU96348" target="_blank" >RIV/00216305:26210/11:PU96348 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Dislocation-based and Continuum Models of Crack tip Shielding in Fatigue

Original language description

Along with external forces and the macro-geometry of cracked bodies, the local stress intensity factors k (or delta k) at fronts of brittle and fatigue cracks are also determined by internal residual stress fields and the crack front microgeometry (extrinsic shielding). Consequently, the values of k (delta k) that represent a real crack driving force can be significantly different from those of the remote K (delta K). This means that, even in the frame of two-parameter linear-elastic fracture mechanics, a characterization of the crack-tip stress field only by K and T is not sufficient at all.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

JL - Fatigue and fracture mechanics

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů