A Numerical Estimation of the Effect of a Bi-Material Interface on Crack Tip Plastic Zone Size and Shape
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F13%3A00214885" target="_blank" >RIV/68407700:21340/13:00214885 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.12776/amsc.v3i0.111" target="_blank" >http://dx.doi.org/10.12776/amsc.v3i0.111</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.12776/amsc.v3i0.111" target="_blank" >10.12776/amsc.v3i0.111</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
A Numerical Estimation of the Effect of a Bi-Material Interface on Crack Tip Plastic Zone Size and Shape
Popis výsledku v původním jazyce
Fatigue crack propagation in ferrite (bainite) near the austenitic cladding was modelled by means of the elastic-plastic finite element method and the effect of the bi-material interface on the cyclic plastic zone size and shape was investigated. It wasdemonstrated that cyclic plastic strains in softer austenite are already present at the moment when the cyclic plastic zone around the crack tip in harder ferrite reaches the interface. Crack tip plastic zones under plane stress and plane strain conditions vary in size and shape and are affected by the approaching material interface. The level of dissipated energy in front of the fatigue crack and, therefore, the crack rate increased as the boundary of the cyclic plastic zone reached the material interface.
Název v anglickém jazyce
A Numerical Estimation of the Effect of a Bi-Material Interface on Crack Tip Plastic Zone Size and Shape
Popis výsledku anglicky
Fatigue crack propagation in ferrite (bainite) near the austenitic cladding was modelled by means of the elastic-plastic finite element method and the effect of the bi-material interface on the cyclic plastic zone size and shape was investigated. It wasdemonstrated that cyclic plastic strains in softer austenite are already present at the moment when the cyclic plastic zone around the crack tip in harder ferrite reaches the interface. Crack tip plastic zones under plane stress and plane strain conditions vary in size and shape and are affected by the approaching material interface. The level of dissipated energy in front of the fatigue crack and, therefore, the crack rate increased as the boundary of the cyclic plastic zone reached the material interface.
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
JL - Únava materiálu a lomová mechanika
OECD FORD obor
—
Návaznosti výsledku
Projekt
<a href="/cs/project/GAP108%2F10%2F2049" target="_blank" >GAP108/10/2049: Iniciace a šíření trhliny ze singulárních koncentrátorů napětí souvisejících s rozhraním</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2013
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů