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Affichage de 1381 à 1390 sur 2043

  • Article dans une revue

Flow rate distribution and effect of convection and radiation heat transfer on the temperature profile during a coil annealing process

Abdallah Haouam, Maxence Bigerelle

Determining the temperature of several steel coils, heated in a furnace with a controlled hydrogen environment is important in an annealing process. Temperatures must be defined during heat treatment in order to guarantee metallurgical properties and acceptable reduced residual stresses. In this...

Heat and Mass Transfer, 2015, 51 (2), pp.265-276. ⟨10.1007/s00231-014-1409-y⟩. ⟨hal-03627532⟩

  • Article dans une revue

Damage at high strain rates in semi-crystalline polymers

Romain Balieu, Franck Lauro, Bruno Bennani, Grégory Haugou, Fahmi Chaari, Tsukatada Matsumoto, Ernesto Mottola

A specific damage characterization method using Digital Image Correlation for semi-crystalline polymers is proposed for a wide range of strain rates. This damage measurement is an extension of the SEĖ method [16] which was developed to characterize the behaviour laws at constant strain rates of...

International Journal of Impact Engineering, 2015, 76, pp.1-8. ⟨10.1016/j.ijimpeng.2014.08.013⟩. ⟨hal-03450984⟩

  • Article dans une revue

Wettability versus roughness: Multi-scales approach

Vanessa Belaud, Stéphane Valette, Guy Stremsdoerfer, Maxence Bigerelle, Stéphane Benayoun

These authors experimentally investigate the influence of multi-scale roughness on contact angle measurements, and they propose a model combining the Wenzel and Cassie–Baxter equations with the 3D roughness parameters defined by ISO25178. To do this, a generic methodology based on a statistical...

Tribology International, 2015, 82, pp.343-349. ⟨10.1016/j.triboint.2014.07.002⟩. ⟨hal-03451770⟩

  • Article dans une revue

Multi-level homotopy perturbation and projection techniques for the reanalysis of quadratic eigenvalue problems: The application of stability analysis

Franck Massa, Bertrand Lallemand, Thierry Tison

Complex eigenvalue analysis is widely used to investigate the stability of a dynamical system with frictional contact. For finite element models, iterative solvers are needed to precisely calculate complex modes and eigenvalues. However, in cases such as reanalysis studies, optimization or...

Mechanical Systems and Signal Processing, 2015, 52-53, pp.88-104. ⟨10.1016/j.ymssp.2014.07.013⟩. ⟨hal-03451031⟩

  • Article dans une revue

A variable neighborhood search for solving the multi-vehicle covering tour problem

Manel Kammoun, Houda Derbel, Mustapha Ratli, Bassem Jarboui

In this article, we consider a transportation problem with different kinds of locations: V , T, and W. The set T ⊂ V consists of vertices that must be visited through the use of potential locations in V and W consists of locations that must be covered. The problem consists in minimizing vehicle...

Electronic Notes in Discrete Mathematics, 2015, 47, pp.285-292. ⟨10.1016/j.endm.2014.11.037⟩. ⟨hal-03401415⟩

  • Article dans une revue

The representative topography of worn hot rolling mill cylinders

Emilie Luc, Maxence Bigerelle, Raphaël Deltombe, Mirentxu Dubar

In this paper, a method is proposed to extract the most representative surface topography from n surfaces. A criterion is proposed that allows rejecting irrelevant topographical maps. Then, this methodology is applied on the hot rolling process, on replicas of industrial surfaces. These analyses...

Tribology International, 2015, 82, pp.387-399. ⟨10.1016/j.triboint.2014.05.031⟩. ⟨hal-03451967⟩

  • Article dans une revue

Determination of adequate regenerator for a Gamma-type Stirling engine

Ramla Gheith, Fethi Aloui, Sassi Ben Nasrallah

This paper deals with an optimization of the Stirling engine regenerator’s. Firstly, different materials are experimented (Stainless Steel, Copper, aluminum and Monel 400). The engine performances and the state of each material after 15 h of use are considered. The Stainless steel was the material...

Applied Energy, 2015, 139, pp.272-280. ⟨10.1016/j.apenergy.2014.11.011⟩. ⟨hal-03450995⟩

  • Article dans une revue

Wettability versus roughness: Multi-scales approach

Vanessa Belaud, Stéphane Valette, Guy Stremsdoerfer, Maxence Bigerelle, Stéphane Benayoun

These authors experimentally investigate the influence of multi-scale roughness on contact angle measurements, and they propose a model combining the Wenzel and Cassie–Baxter equations with the 3D roughness parameters defined by ISO25178. To do this, a generic methodology based on a statistical...

Tribology International, 2015, 82, pp.343-349. ⟨10.1016/j.triboint.2014.07.002⟩. ⟨hal-04533575⟩

  • Article dans une revue

Clustering cities based on their development dynamics and Variable neigborhood search

B. S. Zhikharevich, O. V. Rusetskay, Nenad Mladenovic

Clustering cities based on their socio-economic development in long time period is an important issue and may be used in many ways, e.g., in strategic regional planning. In this paper we continue our recent study where cumulative attribute for each year replaces nine other attributes, called ‘...

Electronic Notes in Discrete Mathematics, 2015, 47, pp.213-220. ⟨10.1016/j.endm.2014.11.028⟩. ⟨hal-03401504⟩

  • Article dans une revue

Relation between roughness and processing conditions of AISI 316L stainless steel treated by ultrasonic shot peening

Julie Marteau, Maxence Bigerelle, P.-E. Mazeran, Salima Bouvier

This article assessed the roughness induced by ultrasonic shot peening. Surface properties of AISI 316L steel specimens were modified through the variation of ultrasonic shot-peening parameters (shot material, shot diameter, sonotrode amplitude vibration and coverage). Each surface was characterized...

Tribology International, 2015, 82, pp.319-329. ⟨10.1016/J.TRIBOINT.2014.07.013⟩. ⟨hal-02909008⟩