Advanced Numerical Modeling and Experimental Analysis of Thermal Gradients in Gleeble Compression Configuration for 2017-T4 Aluminum Alloy
Gleeble thermomechanical simulators are widely utilized tools for the investigation of high-temperature deformation behavior in materials. However, temperature gradients that develop within the specimen during Gleeble compression tests have the potential to result in non-uniform deformation, which m...
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2024-11-01
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| author | Olivier Pantalé Yannis Muller Yannick Balcaen |
| author_facet | Olivier Pantalé Yannis Muller Yannick Balcaen |
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| description | Gleeble thermomechanical simulators are widely utilized tools for the investigation of high-temperature deformation behavior in materials. However, temperature gradients that develop within the specimen during Gleeble compression tests have the potential to result in non-uniform deformation, which may subsequently impact the accuracy of the measured mechanical properties. This study presents an experimental and numerical investigation of the temperature fields in 2017-T4 aluminum alloy specimens prior to Gleeble compression tests at temperatures ranging from <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>300</mn><mo> </mo><mo>°</mo><mi mathvariant="normal">C</mi><mo> </mo><mi>to</mi><mrow></mrow><mo> </mo><mn>500</mn><mo> </mo><mo>°</mo><mi mathvariant="normal">C</mi></mrow></semantics></math></inline-formula> utilizing uniform temperature distribution (ISO-T) tungsten carbide anvils. The use of multiple thermocouples, welded to both the specimen and anvils, offers valuable insights into the temperature gradients and their evolutions. A coupled thermal–electrical finite-element model was developed in Abaqus for the purpose of simulating the resistive heating process. A user amplitude subroutine (UAMP) is implemented to regulate the heating based on a proportional–integral–derivative (PID) algorithm that modulates the current density to follow the specified temperature profile. The numerical results demonstrate that the temperature gradients within the specimen at the end of the heating process, reaching a temperature of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>400</mn><mo> </mo><mo>°</mo><mi mathvariant="normal">C</mi></mrow></semantics></math></inline-formula>, are minimal, with values below <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>1.9</mn><mo> </mo><mo>°</mo><mi mathvariant="normal">C</mi></mrow></semantics></math></inline-formula>. This is in accordance with the experimental observations. The addition of graphite foils between the specimen and anvils has been shown to effectively reduce the gradients. The use of the measured anvil temperature as a boundary condition, rather than a constant value of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>20</mn><mo> </mo><mo>°</mo><mi mathvariant="normal">C</mi></mrow></semantics></math></inline-formula>, has been demonstrated to improve the agreement between the simulated and experimental cooling curves. The modeling approach provides a framework for quantifying temperature gradients in Gleeble compression specimens and for assessing their impact on the measured constitutive response of materials at elevated temperatures. |
| format | Article |
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| spelling | doaj-art-42884b28680249e7a6c79cf541ebf4152025-08-20T02:50:52ZengMDPI AGApplied Mechanics2673-31612024-11-015483985510.3390/applmech5040047Advanced Numerical Modeling and Experimental Analysis of Thermal Gradients in Gleeble Compression Configuration for 2017-T4 Aluminum AlloyOlivier Pantalé0Yannis Muller1Yannick Balcaen2Laboratoire Génie de Production, Université de Technologie de Tarbes Occitanie Pyrénées, Université de Toulouse, 47 Av d’Azereix, 65016 Tarbes, FranceLaboratoire Génie de Production, Université de Technologie de Tarbes Occitanie Pyrénées, Université de Toulouse, 47 Av d’Azereix, 65016 Tarbes, FranceLaboratoire Génie de Production, Université de Technologie de Tarbes Occitanie Pyrénées, Université de Toulouse, 47 Av d’Azereix, 65016 Tarbes, FranceGleeble thermomechanical simulators are widely utilized tools for the investigation of high-temperature deformation behavior in materials. However, temperature gradients that develop within the specimen during Gleeble compression tests have the potential to result in non-uniform deformation, which may subsequently impact the accuracy of the measured mechanical properties. This study presents an experimental and numerical investigation of the temperature fields in 2017-T4 aluminum alloy specimens prior to Gleeble compression tests at temperatures ranging from <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>300</mn><mo> </mo><mo>°</mo><mi mathvariant="normal">C</mi><mo> </mo><mi>to</mi><mrow></mrow><mo> </mo><mn>500</mn><mo> </mo><mo>°</mo><mi mathvariant="normal">C</mi></mrow></semantics></math></inline-formula> utilizing uniform temperature distribution (ISO-T) tungsten carbide anvils. The use of multiple thermocouples, welded to both the specimen and anvils, offers valuable insights into the temperature gradients and their evolutions. A coupled thermal–electrical finite-element model was developed in Abaqus for the purpose of simulating the resistive heating process. A user amplitude subroutine (UAMP) is implemented to regulate the heating based on a proportional–integral–derivative (PID) algorithm that modulates the current density to follow the specified temperature profile. The numerical results demonstrate that the temperature gradients within the specimen at the end of the heating process, reaching a temperature of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>400</mn><mo> </mo><mo>°</mo><mi mathvariant="normal">C</mi></mrow></semantics></math></inline-formula>, are minimal, with values below <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>1.9</mn><mo> </mo><mo>°</mo><mi mathvariant="normal">C</mi></mrow></semantics></math></inline-formula>. This is in accordance with the experimental observations. The addition of graphite foils between the specimen and anvils has been shown to effectively reduce the gradients. The use of the measured anvil temperature as a boundary condition, rather than a constant value of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>20</mn><mo> </mo><mo>°</mo><mi mathvariant="normal">C</mi></mrow></semantics></math></inline-formula>, has been demonstrated to improve the agreement between the simulated and experimental cooling curves. The modeling approach provides a framework for quantifying temperature gradients in Gleeble compression specimens and for assessing their impact on the measured constitutive response of materials at elevated temperatures.https://www.mdpi.com/2673-3161/5/4/47Gleeble compression test2017-T4 aluminum alloythermal gradientnumerical simulationabaquscoupled electro-thermal model |
| spellingShingle | Olivier Pantalé Yannis Muller Yannick Balcaen Advanced Numerical Modeling and Experimental Analysis of Thermal Gradients in Gleeble Compression Configuration for 2017-T4 Aluminum Alloy Applied Mechanics Gleeble compression test 2017-T4 aluminum alloy thermal gradient numerical simulation abaqus coupled electro-thermal model |
| title | Advanced Numerical Modeling and Experimental Analysis of Thermal Gradients in Gleeble Compression Configuration for 2017-T4 Aluminum Alloy |
| title_full | Advanced Numerical Modeling and Experimental Analysis of Thermal Gradients in Gleeble Compression Configuration for 2017-T4 Aluminum Alloy |
| title_fullStr | Advanced Numerical Modeling and Experimental Analysis of Thermal Gradients in Gleeble Compression Configuration for 2017-T4 Aluminum Alloy |
| title_full_unstemmed | Advanced Numerical Modeling and Experimental Analysis of Thermal Gradients in Gleeble Compression Configuration for 2017-T4 Aluminum Alloy |
| title_short | Advanced Numerical Modeling and Experimental Analysis of Thermal Gradients in Gleeble Compression Configuration for 2017-T4 Aluminum Alloy |
| title_sort | advanced numerical modeling and experimental analysis of thermal gradients in gleeble compression configuration for 2017 t4 aluminum alloy |
| topic | Gleeble compression test 2017-T4 aluminum alloy thermal gradient numerical simulation abaqus coupled electro-thermal model |
| url | https://www.mdpi.com/2673-3161/5/4/47 |
| work_keys_str_mv | AT olivierpantale advancednumericalmodelingandexperimentalanalysisofthermalgradientsingleeblecompressionconfigurationfor2017t4aluminumalloy AT yannismuller advancednumericalmodelingandexperimentalanalysisofthermalgradientsingleeblecompressionconfigurationfor2017t4aluminumalloy AT yannickbalcaen advancednumericalmodelingandexperimentalanalysisofthermalgradientsingleeblecompressionconfigurationfor2017t4aluminumalloy |