RT Journal Article
T1 Numerical modelling of three-dimensional fatigue crack closure: mesh refinement.
A1 Camas-Peña, Daniel
A1 García-Manrique-Ocaña, José Manuel
A1 Moreno-Morales, María Belén
A1 González-Herrera, Antonio
K1 Método de los elementos finitos
K1 Materiales - Fatiga
AB Fatigue crack closure has been studied by means of the finite element method for a long time. Most workhas been performed considering bi-dimensional models where the numerical methodology has beendeveloped. A great number of bi-dimensional studies analyses different numerical parameters andoptimise them.Three-dimensional models have extended lately. Nevertheless, the methodology employed was takenfrom the one developed for bi-dimensional cases. The current computational capabilities allow acomprehensive three-dimensional study of the influence of the different modelling parameters in a similarway to those studies carried out with bi-dimensional models.In particular, one of the key issues is related to the element size, which has a huge influence on crackopening and closure values. In the present work, a CT aluminium specimen has been modelled threedimensionallyand several calculations have been made in order to evaluate the influence of the mesh sizearound the crack front. The numerical accuracy is analysed in terms of crack closure and opening values.Classical bi-dimensional recommendations are updated. A similar linear relationship has been identifiedand a minimum mesh recommendation of 60 divisions of the Dugdale’s plastic zone size is made.
PB Elsevier
YR 2018
FD 2018-04-05
LK https://hdl.handle.net/10630/28828
UL https://hdl.handle.net/10630/28828
LA eng
NO Camas, D., Garcia-Manrique, J., Moreno, B., Gonzalez-Herrera, A.,  Numerical modelling of three-dimensional fatigue crack closure: Mesh refinement.  International Journal of Fatigue, 113, 193-203, 2018
NO Accepted Manuscript
NO Ministerio de Economía y Competitividad de EspañaMAT2016-76951-C2-2-P.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026