Laurent Delannay
Recent publications

Within the field of solid mechanics, my research aims at an improved understanding of the influence of microstructure and damage on the deformability, the strength and the toughness of both natural and high-performance engineering materials. One important challenge is to address anisotropic, non-linear and possibly unstable responses resulting from microstructural changes in plastically deformed heterogeneous materials. To assist the interpretation of experimental observations, performed at various length scales, I develop original, physically-sound, constitutive models and apply them in computational predictions of the microscopic and macroscopic mechanical response. The fields of application span many engineering disciplines, among which mechanical manufacturing, biomechanics and structural integrity.

IMMC main research direction(s):
Computational science
Solid mechanics

finite elements
fracture mechanics
metallic alloys

Research group(s): MEMA

PhD and Post-doc researchers under my supervision:

Numerical modeling of growth and remodeling in stented arteries
Colin Laville

The project aims to predict the evolution of the radial contraction of stented arteries using a continuum mechanics model, with application to bio-resorbable stent development. The capture of the stress state evolution in the artery wall requires a material model that includes:
- the modeling of the main constituents such as collagen, elastin and smooth muscles ;
- time dependent evolution such as growth and structural remodeling.
Some developed tools are also used to predict fracture in bended stainless steels.

Recent publications

See complete list of publications

Journal Articles

1. Lin, Fengxiang; Shi, Qiwei; Delannay, Laurent. Microscopic heterogeneity of plastic strain and lattice rotation in partially recrystallized copper polycrystals. In: International Journal of Solids and Structures, Vol. 184, p. 167-177 (2020). doi:10.1016/j.ijsolstr.2019.01.024.

2. Delannay, Laurent; Lemoine, Guerric; Coulombier, Michaël; Pardoen, Thomas. Modelling creep induced by internal stresses in freestanding submicron Cu film. In: IOP Conference Series: Materials Science and Engineering, Vol. 580, p. 012003 (2019). doi:10.1088/1757-899x/580/1/012003.

3. Miotti Bettanini, Alvise; Ding, Lipeng; Mithieux, Jean-Denis; Parrens, Coralie; Idrissi, Hosni; Schryvers, Dominique; Delannay, Laurent; Pardoen, Thomas; Jacques, Pascal. Influence of M23C6 dissolution on the kinetics of ferrite to austenite transformation in Fe-11Cr-0.06C stainless steel. In: Materials & Design, Vol. 162, p. 362 - 374 (2019). doi:10.1016/j.matdes.2018.12.005; 10.1016/j.matdes.2018.12.005.

4. Miotti Bettanini, Alvise; Hannard, Florent; Jacques, Pascal; Pardoen, Thomas; Guilleume, Badinier; Mithieux, Jean Denis; Delannay, Laurent. Residual ferrite in martensitic stainless steels: the effect of mechanical strength contrast on ductility. In: Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing, Vol. 731, p. 495 - 505 (2018). doi:10.1016/j.msea.2018.06.012.

5. Poddar, Shashi; Pereira de Sa, Pedro Miguel; Cai, Ronggang; Delannay, Laurent; Nysten, Bernard; Piraux, Luc; Jonas, Alain M. Room-Temperature Magnetic Switching of the Electric Polarization in Ferroelectric Nanopillars. In: ACS Nano, Vol. 12, p. 576-584 (2018). doi:10.1021/acsnano.7b07389.

6. Lin, Fengxiang; Marteleur, Matthieu; Jacques, Pascal; Delannay, Laurent. Transmission of {332}<113> twins across grain boundaries in a metastable beta-titanium alloy. In: International Journal of Plasticity, Vol. 105, p. 195-210 (2018). doi:10.1016/j.ijplas.2018.02.012.

7. Delannay, Laurent. Modeling of microscopic strain heterogeneity during wire drawing of pearlite. In: Procedia Manufacturing, Vol. 15, p. 1893-1899 (2018). doi:10.1016/j.promfg.2018.07.199.

8. Lin, Fengxiang; Marteleur, Matthieu; Alkorta, Jon; Jacques, Pascal; Delannay, Laurent. Local stress field induced by twinning in a metastable beta-titanium alloy. In: IOP Conference Series: Materials Science and Engineering, Vol. 219, p. 012031 (2017). doi:10.1088/1757-899X/219/1/012031.

9. Zinovev, Aleksandr; Terentyev, D; Delannay, Laurent. Finite element analysis of heat load of tungsten relevant to ITER conditions. In: Physica Scripta : an international journal for experimental and theoretical physics, Vol. T170, p. 014002 (2017). doi:10.1088/0031-8949/2017/T170/014002.

10. Zinovev, Aleksandr; Terentyev, Dmitry; Dubinko, Andrii; Delannay, Laurent. Constitutive law for thermally-activated plasticity of recrystallized tungsten. In: Journal of Nuclear Materials, Vol. 496, p. 325-332 (2017). doi:10.1016/j.jnucmat.2017.09.044.

Conference Papers

1. Croonenborghs, Maïté; Ismail, Karim; Everaerts, J; Korsunsky, AM; Laville, Colin; Delannay, Laurent; Pardoen, Thomas. Influence du pliage sur la resistance en fatigue des tiges de croissance.

2. Pardoen, Thomas; Hannard, Florent; Ismail, Karim; Miotti Bettanini, Alvise; Lecarme, Liza; Maire, Eric; Perlade, Astrid; Mithieux, Jean-Denis; Brassart, Laurence; Delannay, Laurent; Jacques, Pascal; Simar, Aude. Microstructure heterogeneity dominated ductile fracture.

3. Miotti Bettanini, Alvise; Laville, Colin; Mithieux, Jean-Denis; Parrens, Coralie; Jacques, Pascal; Pardoen, Thomas; Delannay, Laurent. Ductile to brittle failure transition under bending deformation of martensitic stainless steels.

4. Szyndler, Joanna; Delannay, Laurent; Muszka, Krzysztof; Madej, Lukasz. Numerical and experimental microscale analysis of the incremental forming process. In: AIP Conference Proceedings. Vol. 1896, p. 080006 (2017). doi:10.1063/1.5008086.

5. Fivel, Marc; Tummala, Hareesh; Hammad, Mohamed; Pardoen, Thomas; Idrissi, Hosni; Delannay, Laurent. 3D DD Investigations of the Role of Interfaces on Dislocation Plasticity.

6. Miotti Bettanini, Alvise; Delannay, Laurent; Jacques, Pascal; Pardoen, Thomas; Badinier, Guillaume; Mithieux, Jean-Denis. Influence Of Microscopic Strain Heterogeneity On The Formability Of Martensitic Stainless Steel. In: Proceedings of ESAFORM, 2017.

7. Miotti Bettanini, Alvise; Delannay, Laurent; Jacques, Pascal; Pardoen, Thomas. The Effect of Second Population NbC Carbides on The Shear Localisation in a Nb-Modified AISI 410 Stainless Steel.

8. Tummala, Hareesh; Fivel, Marc; Pardoen, Thomas; Delannay, Laurent; Lemoine, Guerric. Collective influence of texture, grain shape, size and dislocation density on the plasticity of polycrystalline metallic thin films.

9. Lemoine, Guerric; Colla, Marie-Stéphane; Pardoen, Thomas; Delannay, Laurent. Dislocation and back stress dominated viscoplasticity in freestanding sub-micron Pd films.

10. Miotti Bettanini, Alvise; Delannay, Laurent; Jacques, Pascal; Pardoen, Thomas; Mithieux, Jean-Denis; Badinier, Guillaume. The Role of Chromium Carbides Volume Fraction on Plastic Instability Under Three-Point Bending Test in Martensitic Stainless Steel.

Book Chapters

1. Delannay, Laurent; Van Bael, Albert. Editorial: in Honor of Paul Van Houtte. In: International Journal of Plasticity , Elsevier, 2015. doi:10.1016/j.ijplas.2014.09.002.