Skip navigation

Fatigue crack growth in metallic components: numerical modelling and analytical solution

Fatigue crack growth in metallic components: numerical modelling and analytical solution

D'Angela, Danilo and Ercolino, Marianna ORCID: 0000-0001-8678-0631 (2021) Fatigue crack growth in metallic components: numerical modelling and analytical solution. Structural Engineering and Mechanics, 79 (5). pp. 541-556. ISSN 1225-4568 (Print), 1598-6217 (Online) (doi:https://doi.org/10.12989/sem.2021.79.5.541)

[img]
Preview
PDF (Author's accepted abstract)
34267_ERCOLINO_Fatigue_crack_growth.pdf - Accepted Version

Download (85kB) | Preview

Abstract

The paper presents innovative approaches for the simulation of fatigue crack growth (FCG) in metallic compact tension (CT) specimens using finite element (FE) analysis and analytical solution. FE analysis is performed in ABAQUS using the extended finite element method (XFEM) coupled with the direct cyclic low-cycle fatigue (LCF) approach. Novel methods are developed for the computation of the numerical crack growth by processing the analysis outputs. The numerical modelling is validated by considering past experimental data. The analytical solution for the fatigue life evaluation is formally reviewed, and novel fatigue damage descriptors are defined. The influence of the main sample/testing features on numerical and analytical fatigue life is extensively assessed by a parametric study. The discrepancy between the numerical and analytical estimations of the fatigue life of the components is investigated and correlated to the features of the testing/modelling. A statistical-based correction factor is finally proposed in order to enhance the analytical solution.

Item Type: Article
Uncontrolled Keywords: ABAQUS; fatigue crack growth; fatigue life; FE analysis; low-cycle fatigue; XFEM
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Q Science > QD Chemistry
T Technology > TJ Mechanical engineering and machinery
Faculty / School / Research Centre / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > School of Engineering (ENG)
Related URLs:
Last Modified: 27 Oct 2021 15:38
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
Selected for REF2021: None
URI: http://gala.gre.ac.uk/id/eprint/34267

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics