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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Penazzi, Luc
IMT Mines Albi
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2024Mechanical characterization and behavior modelling of Ti-6Al-4V alloy in hot forming conditions
- 2019Digital Image Correlation method for monitoring tensile tests at high temperature. Part 1: comparing the speckle quality produced by various methods at high temperature
- 2018A new numerical strategy for SPF pressure profile computing based on statistical strain rate controllingcitations
- 2017Mechanical Behavior And Modelisation Of Ti-6Al-4V Titanium Sheet Under Hot Stamping Conditionscitations
- 2016Hot Forming Process Analysis of Ti6Al-4V Alloy: Experiment, Behaviour Modelling and Finite Element Simulationcitations
- 2016Hot blanking tool wear assessment
- 2016Thermo-Mechanical Modeling of Distortions Promoted during Cooling of Ti-6Al-4V Part Produced by Superplastic Forming
- 2016Superplastic forming optimization technique based on average strain rate controlling – Numerical simulation and experimental validation
- 2015Hot Forming Process Analysis of Ti6Al-4V Alloy: Experiment, Behaviour Modelling and Finite Element Simulationcitations
- 2015Thermo-Mechanical Modeling of Distortions Promoted during Cooling of Ti-6Al-4V Part Produced by Superplastic Forming
- 2013Fatigue analysis-based numerical design of stamping tools made of cast ironcitations
- 2013Fatigue analysis-based numerical design of stamping tools made of cast ironcitations
- 2012Experimental investigation of the tribological behavior and wear mechanisms of tool steel grades in hot stamping of a high-strength boron steelcitations
- 2012Experimental investigation of the tribological behavior and wear mechanisms of tool steel grades in hot stamping of a high-strength boron steelcitations
- 2012Influence of foundry defects and load ratios on the fatigue behavior of cast iron EN-GJS-600
- 2012A methodology and new criteria to quantify the adhesive and abrasive wear damage on a die radius using white light profilometrycitations
- 2012A methodology and new criteria to quantify the adhesive and abrasive wear damage on a die radius using white light profilometrycitations
- 2011A New Method For Advanced Virtual Design Of Stamping Tools For Automotive Industry: Application To Nodular Cast Iron EN‐GJS‐600‐3citations
- 2011A new method for advanced virtual design of stamping tools for automotive industry: application to nodular cast iron EN-GJS-600-3citations
- 2006Cyclic behavior modeling of a tempered martensitic hot work tool steelcitations
- 2005A continuum damage model applied to fatigue lifetime predicition of a martensitic tool steel
- 2005Wear behaviour on the radius portion of a die in deep-drawing: Identification, localisation and evolution of the surface damagecitations
- 2005A continuum damage model applied to high temperature fatigue lifetime prediction of a martensitic tool steelcitations
- 2002Cyclic behaviour modelling of martensitic hot work tool steels
- 2001Thermomechanical fatigue behaviour and life assessment of hot work tool steels
- 2000Life prediction of hot work tool steels subjected to thermomechanical fatigue ; Prédiction de la durée de vie sous sollicitations thermomécaniques des outillages en acier travaillant à chaudcitations
- 2000Life prediction of hot work tool steels subjected to thermomechanical fatiguecitations
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conferencepaper
Digital Image Correlation method for monitoring tensile tests at high temperature. Part 1: comparing the speckle quality produced by various methods at high temperature
Abstract
National audience ; In order to improve the thermo-mechanical models proposed for hot forming processes, the identification and validation of the numerical simulations could take advantage of continuous kinematic full field measurements achieved during different production steps. This kind of measurements could especially be obtained by Digital Image Correlation. Although this method is relatively mastered at room temperature, it is more complex to implement at high temperature (typically from 600°C to 800°C). This is due to a number of factors, including the mirage effect (phenomena of gradient of refractive index), the loss of image contrast and the speckle flaking observed during thermo-mechanical experiments. This study focus on fabrication methods of speckle and its characteristics at high temperature. The first part introduces different techniques for creating the speckle (paint spraying, anodization, laser engraving and combination between anodization and laser engraving). In order to compare these methods, the same mask (prepared from a synthetic image) is systematically used. The pattern obtained therefore meets certain criteria (density, size, correlation length, etc.) and can be reproduced. Images of the speckled surface are then captured at different temperatures and compared in term of contrast, gray level distribution, etc. The first results show that the speckle obtained by combining laser marking and anodizing leads to better contrast when compared with other techniques at room temperature. However, this result is no more certain at high temperature because of the oxidation layer that develops. In the second part, the adhesion on the surface of a Ti-6Al-4V alloy of the speckles produced using different methods is evaluated. Tensile tests performed at high-temperature with large strain are then performed. In conclusion, a guideline for choosing an appropriate speckle deposition method for studying conditions of hot forming process is suggested. ; L'objectif globale de cet étude est de développer ...