FEM Simulation of Fatigue Crack Front Tunneling

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F09%3A00160053" target="_blank" >RIV/68407700:21340/09:00160053 - 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
FEM Simulation of Fatigue Crack Front Tunneling
Original language description
Paper presents and compares a 3D elastic-plastic FEM model for prediction of fatigue crack growth with experimental results. The model is based on the idea of local low-cycle fatigue of a small material volume in front of high cycle crack. A local crackfront advance is modeled through the successive release of the finite element mesh nodes in the plane of propagation. The release of the node is controlled by low-cycle damage accumulated in the surrounding elements. The immediate rate of the damage accumulation is given by the product of maximum stress and elastic-plastic strain amplitude (the Smith-Watson-Topper parameter) in the loading cycle. In addition to existing 2D models with plane stress or plane strain assumptions, this 3D model enables simulation of fatigue crack front tunneling.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JL - Fatigue and fracture mechanics
OECD FORD branch
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Project
<a href="/en/project/GA101%2F08%2F1623" target="_blank" >GA101/08/1623: Innovative techniques for assessment of residual life of bodies with fatigue cracks</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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