team:carretta
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====== Yves CARRETTA ====== | ====== Yves CARRETTA ====== | ||
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+ | <WRAP left> | ||
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This page gives an overview of my research activities. | This page gives an overview of my research activities. | ||
- | The goal of my PhD was to model **Micro | + | The goal of my PhD was to model **Micro |
I used the in-house Finite Element (FE) software [[http:// | I used the in-house Finite Element (FE) software [[http:// | ||
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My goal is now to couple the FE software Metafor to the numerical rolling model [[# | My goal is now to couple the FE software Metafor to the numerical rolling model [[# | ||
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+ | ** Keywords ** | ||
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+ | [[wp> | ||
===== Collaborations ===== | ===== Collaborations ===== | ||
* **ArcelorMittal :** The purpose of the collaboration with ArcelorMittal is to improve the capabilities of the cold-rolling software [[# | * **ArcelorMittal :** The purpose of the collaboration with ArcelorMittal is to improve the capabilities of the cold-rolling software [[# | ||
- | * **CEMEF :** I performed thermal simulations with Romain Canivenc, a researcher from CEMEF. The thermal coupling procedure I implemented between MetaLub and ThermRoll (a code - developped | + | * **CEMEF :** I performed thermal simulations with Romain Canivenc, a researcher from CEMEF and his advisor [[http:// |
- | * **Sheffield :** There is an ongoing collaboration with Professor Rob Dwyer-Joyce from the University of Sheffield ([[http:// | + | * **Sheffield :** There is an ongoing collaboration with Professor |
- | * **Valenciennes :** I collaborated with Cédric Hubert and André Dubois [[http:// | + | * **Valenciennes :** I collaborated with [[http:// |
[[#Yves CARRETTA|Back to top]] | [[#Yves CARRETTA|Back to top]] | ||
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===== Positions ===== | ===== Positions ===== | ||
- | * **2013 – now ** : Research Engineer at ULg (Project OPTILUB) “// | + | * **2013 – now ** : Research Engineer at ULg (Project OPTILUB) “// |
* **2009 – 2013** : PhD student (FRIA grant) | * **2009 – 2013** : PhD student (FRIA grant) | ||
===== Education ===== | ===== Education ===== | ||
- | * **2014 :** Ph.D. thesis at the University of Liège (Advisor: J.-P. Ponthot) \\ “//Finite element modelling of Micro-Plasto-Hydrodynamic lubrication in order to take this phenomenon into account in a cold rolling model// | + | * **2014 :** Ph.D. thesis at the University of Liège ([[http:// |
* **2009 :** Degree in Mechanical Engineering at the University of Liège \\ Master thesis: “// | * **2009 :** Degree in Mechanical Engineering at the University of Liège \\ Master thesis: “// | ||
- | ===== Contact information ===== | + | ===== Numerical modeling of MPH lubrication |
- | + | ||
- | Phone : +32 - (0)4/ | + | |
- | e-mail : Y.Carretta@ulg.ac.be | + | |
- | mail : Institut de Mécanique B52/3 | + | |
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- | [[#Yves CARRETTA|Back to top]] | + | |
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- | ===== Keywords ===== | + | |
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- | [[wp> | + | |
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- | ==== Numerical modeling of MPH lubrication ==== | + | |
The experimental setup used by Bech to highlight MPH lubrication is depicted below. It is made of a transparent upper tool and a steel lower tool having a small angle $\alpha$ respective to the horizontal axis ($\alpha$ being either 2°, 3° or 5° depending on the tests). Using a camera, Bech was able to observe and record lubricant outflow from cavities. In the various conditions he tested, Bech observed backward and/or forward lubricant escapes. | The experimental setup used by Bech to highlight MPH lubrication is depicted below. It is made of a transparent upper tool and a steel lower tool having a small angle $\alpha$ respective to the horizontal axis ($\alpha$ being either 2°, 3° or 5° depending on the tests). Using a camera, Bech was able to observe and record lubricant outflow from cavities. In the various conditions he tested, Bech observed backward and/or forward lubricant escapes. | ||
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** FE simulations results computed with Metafor ** | ** FE simulations results computed with Metafor ** | ||
- | < | + | < |
- | <html> | + | {{url>// |
- | <iframe allowfullscreen="" | + | |
- | </ | + | |
</ | </ | ||
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[[#Yves CARRETTA|Back to top]] | [[#Yves CARRETTA|Back to top]] | ||
- | ==== Fluid simulations ==== | + | ===== Fluid simulations |
- | MPH lubrication requires to take into account fluid and solid at the same time in the simulation. To assess Metafor' | + | MPH lubrication requires to take into account fluid and solid at the same time in the simulation. To assess Metafor' |
{{ : | {{ : | ||
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[[#Yves CARRETTA|Back to top]] | [[#Yves CARRETTA|Back to top]] | ||
- | ==== Fluid-structure interaction simulations ==== | + | ===== Fluid-structure interaction simulations |
- | Since fluid-structure interaction simulations were required, I assessed Metafor' | + | Since fluid-structure interaction simulations were required, I assessed Metafor' |
- | < | + | < |
- | <html> | + | {{url>// |
- | <iframe allowfullscreen="" | + | |
- | </ | + | |
</ | </ | ||
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[[#Yves CARRETTA|Back to top]] | [[#Yves CARRETTA|Back to top]] | ||
- | ==== Cold-rolling software: MetaLub ==== | + | ===== Cold-rolling software: MetaLub |
MetaLub is a cold-rolling model taking into account mixed lubrication regime. The main objective is to enhance | MetaLub is a cold-rolling model taking into account mixed lubrication regime. The main objective is to enhance | ||
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but also roll diameters and roughness, etc. can be optimized to improve stability and efficiency of the rolling tool. | but also roll diameters and roughness, etc. can be optimized to improve stability and efficiency of the rolling tool. | ||
- | The first version of this algorithm was implemented, | + | The first version of this algorithm was implemented, |
I changed the structure of the code by means of C++ language. Thanks to the new object oriented structure, features addition are more straightforward and code modifications are more localised. It allowed me to adapt the set of equations when I implemented the coupling procedure involving MetaLub and Metafor. | I changed the structure of the code by means of C++ language. Thanks to the new object oriented structure, features addition are more straightforward and code modifications are more localised. It allowed me to adapt the set of equations when I implemented the coupling procedure involving MetaLub and Metafor. | ||
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This coupling procedure is functional in dry cases: analytical asperity crushing equations used in MetaLub can be replaced by FE simulations of asperity crushing. FE results, such as the relative contact area between the tool and the strip, are then sent back to MetaLub for another computation. This coupling procedure allows us to consider more realistic asperity profiles than in the analytical laws used so far. | This coupling procedure is functional in dry cases: analytical asperity crushing equations used in MetaLub can be replaced by FE simulations of asperity crushing. FE results, such as the relative contact area between the tool and the strip, are then sent back to MetaLub for another computation. This coupling procedure allows us to consider more realistic asperity profiles than in the analytical laws used so far. | ||
- | I implemented a Graphical User Interface ([[wp> | + | I implemented a Graphical User Interface ([[wp> |
- | I also designed a plotter which displays | + | I also designed a plotter which displays |
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===== Publications ===== | ===== Publications ===== | ||
- | <html> | + | <WRAP centeralign column 100%> |
- | <div align=" | + | {{url> |
- | <iframe src="http:// | + | </WRAP> |
- | </div> | + | |
- | </ | + | |
team/carretta.txt · Last modified: 2024/03/01 16:07 by boman