Some new applications of a second-gradient model for porous ductile materials

Autor: Jean-Baptiste Leblond, Fanny Mas, Jean-Michel Bergheau, Jun Yang, Rémi Lacroix

Publikováno v: European Journal of Mechanics-A/Solids
European Journal of Mechanics-A/Solids, Elsevier, 2019, 76, pp.180-192. ⟨10.1016/j.euromechsol.2019.03.013⟩

International audience; A second-gradient model for porous ductile materials extending the standard GTN first-gradient model (Gurson, 1977; Tvergaard, 1981; Tvergaard and Needleman, 1984) was proposed by Gologanu et al. (1997), with the aim of solvin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3130aba18d90935549ae33b3f3c9c4c0
https://doi.org/10.1016/j.euromechsol.2019.03.013

Implementation and application of some nonlinear models of diffusion/reaction in solids

Autor: Jean-Baptiste Leblond, Jean-Michel Bergheau, Didier Huin, Rémi Lacroix

Publikováno v: Finite Elements in Analysis and Design
Finite Elements in Analysis and Design, 2017, 132, pp.8-26. ⟨10.1016/j.finel.2017.04.004⟩
Finite Elements in Analysis and Design, Elsevier, 2017, 132, pp.8-26. ⟨10.1016/j.finel.2017.04.004⟩

International audience; Feulvarch et al. (2009) defined an extended class of nonlinear models of diffusion/reaction in solids, applicable to both problems of diffusion of heat with phase change, and problems of diffusion of chemical elements with for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f05ae22dc482d4b05c8ee52688178322
https://doi.org/10.1016/j.finel.2017.04.004

Benchmark of Finite Elements and Extended-Finite Elements Methods for Stress Intensity Factors and Crack Propagation

Autor: Moïse Pignol, Hubert Deschanels, Sandrine Dischert, Rémi Lacroix, Axelle Caron

Publikováno v: Volume 3B: Design and Analysis.

Stress intensity factors (SIFs) are a major feature in regulatory analyses of Nuclear Power Plants (NPP) components, as they allow to rule on the acceptability of defects when compared to a critical experimental value (K1c). Simplified and robust eva

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::463feaeaeec1cfdd0c9ed6aec8cb1f64
https://doi.org/10.1115/pvp2018-84401

Original test device for crack propagation in the weld nugget of advanced high strength steels

Autor: Arnaud Lens, Rémi Lacroix, Helmut Klocker, Guillaume Kermouche, Jean-Michel Bergheau

Publikováno v: Engineering Fracture Mechanics
Engineering Fracture Mechanics, Elsevier, 2015, 138, pp.156-168. ⟨10.1016/j.engfracmech.2015.02.022⟩

International audience; Advanced High-Strength Steels are ever increasingly used in industry, and unlike mild steels the crack propagates through the weld nugget. At the present time, any method to measure the strength of the fusion zone is unavailab

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b691c5987709e7b5c68177abccf4134
https://doi.org/10.1016/j.engfracmech.2015.02.022

Accurate Prediction of Large Ductile Tearing in Dissimilar Material Welds Using a Non-Local Gurson Model

Autor: Sébastien Gallee, Julie Drouet, Rémi Lacroix, Stéphane Chapuliot, Philippe Gilles

Publikováno v: Volume 6A: Materials and Fabrication.

The experimental assessment of ductile failure of Dissimilar Materials Welds (DMW) of NPP components can be challenging. For instance, the European project ADIMEW [1] has shown the technical complexity of the bending set-up on a DMW join at 300°C. S

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::39f1706051685a45c2b15c5fbb632b47
https://doi.org/10.1115/pvp2016-63538