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KUBÍČEK, R. VOJTEK, T. POKORNÝ, P. HUTAŘ, P.
Original Title
Sensitivity of numerically modelled crack closure to material
Type
journal article in Scopus
Language
English
Original Abstract
Crack closure is a phenomenon which slows down fatigue crack propagation and leads to higher residual life of components and to a change in the crack front curvature. Because of the significant impact on the fatigue crack growth rate, the scientific and engineering community has been trying to describe this phenomenon very precisely. One of the most frequently described closure mechanisms is plasticity-induced crack closure (PICC) which is dominant in the Paris regime. In the presented work, a CT specimen has been modelled three-dimensionally and the PICC estimations have been done for different models of materials to investigate their sensitivity. The models were cyclically loaded by forces inducing maximal stress intensity factor of 17 MPa√m at the load ratio R=0.1. The crack was curved according to conducted experiments. Even though Newman’s equation estimates PICC almost constant, differences were observed from finite element simulations.
Keywords
Finite element analysis, plasticity-induced crack closure, fatigue crack growth, high cycle fatigue
Authors
KUBÍČEK, R.; VOJTEK, T.; POKORNÝ, P.; HUTAŘ, P.
Released
3. 1. 2023
Publisher
Elsevier
ISBN
2452-3216
Periodical
Procedia Structural Integrity
Year of study
42
Number
1
State
Republic of Italy
Pages from
911
Pages to
918
Pages count
8
URL
https://www.sciencedirect.com/science/article/pii/S2452321622006722
Full text in the Digital Library
http://hdl.handle.net/11012/209212
BibTex
@article{BUT182482, author="Radek {Kubíček} and Tomáš {Vojtek} and Pavel {Pokorný} and Pavel {Hutař}", title="Sensitivity of numerically modelled crack closure to material", journal="Procedia Structural Integrity", year="2023", volume="42", number="1", pages="911--918", doi="10.1016/j.prostr.2022.12.115", issn="2452-3216", url="https://www.sciencedirect.com/science/article/pii/S2452321622006722" }