Inelastic heat fraction estimation from two successive mechanical and thermal analyses and full-field measurements

Autor: Hervé Louche, Franck Toussaint, Pierre Vacher, Thomas Pottier
Přispěvatelé: Laboratoire SYstèmes et Matériaux pour la MEcatronique ( SYMME ), Université Savoie Mont Blanc ( USMB [Université de Savoie] [Université de Chambéry] ), Laboratoire de Mécanique et Génie Civil ( LMGC ), Université de Montpellier ( UM ) -Centre National de la Recherche Scientifique ( CNRS ), ThermoMécanique des Matériaux ( ThM2 ), Université de Montpellier ( UM ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Montpellier ( UM ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire SYstèmes et Matériaux pour la MEcatronique (SYMME), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Laboratoire de Mécanique et Génie Civil (LMGC), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), ThermoMécanique des Matériaux (ThM2), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Materials science
Field (physics)
Constitutive equation
General Physics and Astronomy
Inverse
02 engineering and technology
Inelastic heat fraction
7. Clean energy
[PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph]
0203 mechanical engineering
Plastic power
Thermal
[SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph]
Forensic engineering
Full-field measurement
General Materials Science
business.industry
Mechanical Engineering
Mechanics
Inverse problem
021001 nanoscience & nanotechnology
020303 mechanical engineering & transports
Mechanics of Materials
[ SPI.MECA.MEMA ] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph]
[ PHYS.MECA.MEMA ] Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph]
Finite element updating
Hardening (metallurgy)
Infrared thermography
0210 nano-technology
business
Thermal energy
Zdroj: European Journal of Mechanics-A/Solids
European Journal of Mechanics-A/Solids, Elsevier, 2013, 38, pp.1-11. 〈10.1016/j.euromechsol.2012.09.002〉
European Journal of Mechanics-A/Solids, Elsevier, 2013, 38, pp.1-11. ⟨10.1016/j.euromechsol.2012.09.002⟩
ISSN: 0997-7538
DOI: 10.1016/j.euromechsol.2012.09.002〉
Popis: International audience; A new method to identify inelastic heat fraction (β factor) evolution models is proposed in this paper. It is based on: (i) simultaneous kinematic and thermal field measurements on heterogeneous tensile tests and (ii) Finite Element Updating (FEU) inverse method. Two inverse calculations, that involve a Levenberg-Marquardt optimization algorithm, are successively used to identify on the one hand the material parameters of a mechanical constitutive model (anisotropic plasticity coefficients and hardening parameters) and on the other hand the plastic power ratio converted into heat. The power balance of the thermomechanical problem is calculated and presented, and the assessment of thermal heat sources is detailed. Finally, six mechanical parameters and four evolution models of β are successively identified for commercially pure titanium. Results confirm a strain dependency of β.
Databáze: OpenAIRE
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