Publications

• Article dans une revue

Quantitative Evolution of WC-Co Cemented Carbide Tool Surface during the Cold Forming of Steel Parts

Laurent Dubar, Colin Debras, Mirentxu Dubar, André Dubois

The present paper investigates the evolution of the WC grain size and morphology with the number of produced parts. Four reduction dies used in cold forward extrusion of steel are taken from the production line: a brand new die and three dies which have respectively produced 100.000, 150.000 and…

Key Engineering Materials, 2018, 767, pp.290-297. ⟨10.4028/www.scientific.net/KEM.767.290⟩. ⟨hal-03450818⟩

• Article dans une revue

Geometrically nonlinear bending analysis of functionally graded beam with variable thickness by a meshless method

Jun Lin, Jiao Li, Yanjin Guan, Guoqun Zhao, Hakim Naceur, Daniel Coutellier

Geometrically nonlinear bending deformation of Functionally Graded Beams (FGBs) with variable thickness is simulated by a meshless Smoothed Hydrodynamic Particle (SPH) method. The material properties of FGB is assumed to be varied smoothly in the thickness according to exponent-law distribution. To…

Composite Structures, 2018, 189, pp.239-246. ⟨10.1016/j.compstruct.2018.01.063⟩. ⟨hal-03450880⟩

• Article dans une revue

Correction to “Unknown input observer design for linear fractional-order time-delay systems” and a new enhanced LMI condition

Yassine Boukal, Mohamed Darouach, Michel Zasadzinski, Nour-Edine Radhy

This note considers the work entitled “Unknown Input Observer Design for Linear Fractional-Order Time-Delay Systems”. In the above paper [1], the authors gave the existence conditions of such observer, then based on the fractional order Lyapunov stability approach, a sufficient condition for the…

Journal of Applied Nonlinear Dynamics, 2018, 7 (1), pp.73-79. ⟨10.5890/JAND.2018.03.006⟩. ⟨hal-01961343⟩

• Article dans une revue

Decentralized motion planning and scheduling of AGVs in FMS

Guillaume Demesure, Michael Defoort, Abdelghani Bekrar, Damien Trentesaux, Mohamed Djemai

In this paper, decentralized motion planning and scheduling of automated guided vehicles (AGVs) in a flexible manufacturing system (FMS) is proposed. A motion planner is combined with a scheduler allowing each AGV to update its destination resource during navigation in order to complete the…

IEEE Transactions on Industrial Informatics, 2018, 14 (4), pp.1744 - 1752. ⟨10.1109/TII.2017.2749520⟩. ⟨hal-01598629⟩

• Article dans une revue

Modeling the viscoplastic flow behavior of a 20MnCr5 steel grade deformed under hot-working conditions, employing a meshless technique

Juan Carlos Álvarez-Hostos, Alfonso D. Bencomo, Eli Saúl Puchi-Cabrera, Jean-Dominique Guerin, Laurent Dubar

The present work has been conducted in order to develop a novel approach to predict the inhomogeneous flow of a 20MnCr5 steel during an axisymmetric hot compression test, by using the element-free Galerkin (EFG) method under a differential constitutive description. The governing equations have been…

International Journal of Plasticity, 2018, 103, pp.119-142. ⟨10.1016/j.ijplas.2018.01.005⟩. ⟨hal-03450115⟩

• Article dans une revue

Friction and Wear in Metal Forming: 25 Years at LAMIH UMR CNRS 8201

Laurent Dubar, André Dubois, Mirentxu Dubar

Since the beginning of the 90’s, research activities focused on friction and wear in metal forming have been developed at the LAMIH UMR CNRS 8201 in Valenciennes. Specific methodologies have been designed to optimize a given forming process (bulk forming process or sheet forming process). These…

Key Engineering Materials, 2018, 767, pp.42-58. ⟨10.4028/www.scientific.net/KEM.767.42⟩. ⟨hal-03450663⟩

• Article dans une revue

Gait‐based human age classification using a silhouette model

Nabila Mansouri, Mohammed Aouled Issa, Yousra Ben Jemaa

Age estimation at a distance has potential applications including visual surveillance and monitoring in public places. Far from the camera, image resolution is significantly degraded. In fact, age estimation using classical methods such as face is not reliable. Given that gait is very sensitive to…

IET Biometrics, 2018, 7 (2), pp.116-124. ⟨10.1049/iet-bmt.2016.0176⟩. ⟨hal-03465155⟩

• Article dans une revue

Video-processing-based system for automated pedestrian data collection and analysis when crossing the street

Nabila Mansouri, Eric Watelain, Yousra Ben Jemaa, Cina Motamed

Computer-vision techniques for pedestrian detection and tracking have progressed considerably and become widely used in several applications. However, a quick glance at the literature shows a minimal use of these techniques in pedestrian behavior and safety analysis, which might be due to the…

Journal of Electronic Imaging, 2018, 27 (2), pp.023016. ⟨10.1117/1.JEI.27.2.023016⟩. ⟨hal-03027998⟩

• Article dans une revue

No effect of fampridine on real-life physical activity in people with multiple sclerosis

Yoshimasa Sagawa, Eric Watelain, Thierry Moulin, Pierre Decavel

Annals of Physical and Rehabilitation Medicine, 2018, 61 (2), pp.105-107. ⟨10.1016/j.rehab.2017.10.006⟩. ⟨hal-03028018⟩

• Article dans une revue

Mathematical programming models for scheduling in a CPU/FPGA architecture with heterogeneous communication delays

Abdessamad Ait El Cadi, Omar Souissi, Rabie Ben Atitallah, Nicolas Belanger, Abdelhakim Artiba

This paper deals with the mathematical modelling of a scheduling problem in a heterogeneous CPU/FPGA architecture with heterogeneous communication delays in order to minimize the makespan, Cmax. This study was motivated by the quality of the available solvers for Mixed Integer Program. The proposed…

Journal of Intelligent Manufacturing, 2018, pp.1-12. ⟨10.1007/s10845-015-1075-z⟩. ⟨hal-01247399⟩