Sensitivity of numerically modelled crack closure to material

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F22%3A00568286" target="_blank" >RIV/68081723:_____/22:00568286 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.prostr.2022.12.115" target="_blank" >http://dx.doi.org/10.1016/j.prostr.2022.12.115</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.prostr.2022.12.115" target="_blank" >10.1016/j.prostr.2022.12.115</a>

Result language
angličtina
Original language name
Sensitivity of numerically modelled crack closure to material
Original language description
Crack closure is a phenomenon which slows down fatigue crack propagation and leads to higher residual life of components and nto a change in the crack front curvature. Because of the significant impact on the fatigue crack growth rate, the scientific and nengineering community has been trying to describe this phenomenon very precisely. One of the most frequently described nclosure mechanisms is plasticity-induced crack closure (PICC) which is dominant in the Paris regime.nIn the presented work, a CT specimen has been modelled three-dimensionally and the PICC estimations have been done for ndifferent models of materials to investigate their sensitivity. The models were cyclically loaded by forces inducing maximal nstress intensity factor of 17 MPa√m at the load ratio ???????? = 0.1. The crack was curved according to conducted experiments. Even nthough Newman’s equation estimates PICC almost constant, differences were observed from finite element simulations
Czech name
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Czech description
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Project
<a href="/en/project/GA22-28283S" target="_blank" >GA22-28283S: Oxide-induced crack closure and its implications for lifetime prediction of mechanical components (OXILAP)</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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