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Affichage de 1631 à 1640 sur 2097

  • Article dans une revue

Closed form solution for the collapse of polygonal thin-walled columns in the axial crushing case

Yamen Maalej, Fahmi Chaari, Bassem Zouari, Eric Markiewicz

The main objective of this paper is to propose a new closed form solution, useful in the pre-design stage, that allows one to calculate the mean load in the case of post-collapse of polygonal thin-walled columns in the axial crushing case. This model gives a rapid and accurate evolution of the…

Journal of Theoretical and Applied Mechanics, 2014, 52 (3), pp.707-718. ⟨hal-03663448⟩

  • Article dans une revue

Dynamic evolution of interface roughness during friction and wear processes

K. J. Kubiak, Maxence Bigerelle, T. Mathia, André Dubois, Laurent Dubar

Dynamic evolution of surface roughness and influence of initial roughness (Sa = 0.282–6.73 µm) during friction and wear processes has been analyzed experimentally. The mirror polished and rough surfaces (28 samples in total) have been prepared by surface polishing on Ti–6Al–4V and AISI 1045 samples…

Scanning, 2014, 36 (1), pp.30-38. ⟨10.1002/sca.21082⟩. ⟨hal-03470665⟩

  • Article dans une revue

Evaluation de la performance des blocs opératoires: du modèle aux indicateurs, Assessing Hospital Operating Rooms Performance: a framework and indicators

Frédéric Bonvoisin, Sondès Chaabane, Olivier Sénéchal, Christian Tahon

Dans cet article, nous présentons une méthodologie qui combine une approche pragmatique avec un outil d'aide à la conception, visant à générer un système global d'évaluation de la performance utilisable dans les blocs opératoires. Elle comporte quatre étapes: détermination de la stratégie…, In the current environment, hospitals need to develop performance assessment tools. Our purpose is an innovative methodology for reducing the existing deficiencies in healthcare performance. This methodology combines a practical approach with a design support tool for generating a global…

Logistique & Management, 2014, 22 (4), pp.33-42. ⟨10.1080/12507970.2014.11665666⟩. ⟨hal-03518955⟩

  • Article dans une revue

L’aide à la décision comme cadre de gouvernance-innovation, Decision aiding as a framework of governance-innovation

Igor Crevits, Laurence Bonnafous, Said Hanafi

Dans cet article, nous avançons quelques arguments montrant que l’aide à la décision est utile pour soutenir une démarche d’innovation. Les concepts de l’aide à la décision permettent de caractériser finement une innovation, en la reliant à l’existant, comme une évolution et non comme une rupture.…, In this paper, we propose some arguments showing that decision aiding is useful for supporting an innovation approach. The concepts of decision aiding allow to finely characterize innovation, by linking it to the current situation, as an evolution rather than a disruption. The methodological…

Management des Technologies Organisationnelles (2014-..), 2014, 4, pp.129-139. ⟨hal-03402279⟩

  • Article dans une revue

From technological acceptability to appropriation by users : Methodological steps for device assessment in road safety

Stéphanie Bordel, Alain Somat, Herî Barbeau, Françoise Anceaux, Catherine Greffeuille, Gaëlle Menguy, Marie-Pierre Pacaux-Lemoine, Peggy Subirats, Florence Http://www.Sites.Univ-Rennes2.Fr/crpcc/index.Php?rub=fiche&iduser=386 Terrade, Marie Line Gallenne

This article presents the methodology developed within the framework of the research project SARI(Automated Road Surveillance for Driver and Administrator Information). This methodology is based onthe logic of action research. The article presents the different stages in the development of…

Accident Analysis & Prevention, 2014, 67 (3396), pp.159-165. ⟨10.1016/j.aap.2014.01.016⟩. ⟨hal-01470381⟩

  • Article dans une revue

An evidential network approach to support uncertain multiviewpoint abductive reasoning

Felipe Aguirre, Mohamed Sallak, Frédéric Vanderhaegen, Denis Berdjag

The paper proposes an approach to support human abductive reasoning in the diagnosis of a multiviewpoint system. The novelty of this work lies on the capability of the approach to treat the uncertainty held by the agent performing the diagnosis. To do so, we make use of evidential networks to…

Information Sciences, 2013, 250, pp.110-125. ⟨10.1016/j.ins.2013.07.014⟩. ⟨hal-00917053⟩

  • Article dans une revue

Coupling a genetic algorithm with the distributed arrival-time control for the JIT dynamic scheduling of flexible job-shops

Gabriel Zambrano Rey, Abdelghani Bekrar, Vittaldas V. Prabhu, Damien Trentesaux

In order to increase customer satisfaction and competitiveness, manufacturing systems need to combine flexibility with Just-in-Time (JIT) production. Until now, research on JIT scheduling problems has been mostly limited to high volume assembly lines rather than job-shop-like systems, due to their…

International Journal of Production Research, 2013, 52 (12), pp.3688-3709. ⟨10.1080/00207543.2014.881575⟩. ⟨hal-03649136⟩

  • Article dans une revue

Fault Detection and Isolation of Aircraft Air Data/Inertial system

Denis Berdjag, Jérome Cieslak, Ali Zolghadri

A method for failure detection and isolation (FDI) for redundant aircraft sensors is presented. The outputs of the concerned sensors are involved in the computation of §ight control laws, and the objective is to eliminate any fault before propagation in the control loop when selecting a unique §…

EUCASS Proceedings Series - Advances in AeroSpace Sciences, 2013, 6, pp.317-332. ⟨10.1051/eucass/201306317⟩. ⟨hal-00913429⟩

  • Article dans une revue

Development of a new nonlinear numerical material model for woven composite materials accounting for permanent deformation and damage

Olivier Cousigné, David Moncayo, Daniel Coutellier, Pedro Camanho, Hakim Naceur, Steffen Hampel

Due to their draping, stiffness, improved ductility and damage tolerance properties woven composites are being increasingly used for the construction of crash-relevant structural parts. Textile composites may depict a nonlinear behavior along several directions. Moreover, considerably-thick…

Composite Structures, 2013, 106, pp.601-614. ⟨10.1016/j.compstruct.2013.07.026⟩. ⟨hal-03613717⟩

  • Article dans une revue

Analysis of thin composite structures using an efficient hex-shell finite element

Seddik Shiri, Hakim Naceur

In this paper a general methodology for the modeling of material composite multilayered shell structures is proposed using a Hex-shell finite element modeling. The first part of the paper is devoted to the general FE formulation of the present composite 8-node Hex-shell element called SCH8, based…

Journal of Mechanical Science and Technology, 2013, 27 (12), pp.3755-3763. ⟨10.1007/s12206-013-0920-2⟩. ⟨hal-03624959⟩