An energy based criterion for high cycle multiaxial fatigue

Autor: Thierry Palin-Luc, Serge Lasserre
Přispěvatelé: Laboratoire Matériaux Endommagement Fiabilité et Ingénierie des Procédés (LAMEFIP), Université Sciences et Technologies - Bordeaux 1, Institut de Mécanique et d'Ingénierie de Bordeaux (I2M), Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB)-École Nationale Supérieure d'Arts et Métiers (ENSAM), Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 1998
Předmět:
Materials science
Ductile materials
General Physics and Astronomy
02 engineering and technology
[SPI.MECA.SOLID]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Solid mechanics [physics.class-ph]
Ellipse
Strain energy
Brittleness
0203 mechanical engineering
Critical point (thermodynamics)
General Materials Science
Mécanique: Mécanique des structures [Sciences de l'ingénieur]
[SPI.MECA.SOLID]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of the solides [physics.class-ph]
business.industry
Mécanique [Sciences de l'ingénieur]
Mechanical Engineering
Mécanique: Mécanique des solides [Sciences de l'ingénieur]
Torsion (mechanics)
Strain energy density function
Structural engineering
[SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph]
021001 nanoscience & nanotechnology
criterion
[SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of the structures [physics.class-ph]
020303 mechanical engineering & transports
Mechanics of Materials
[SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Structural mechanics [physics.class-ph]
Energy based
High cycle multiaxial fatigue
0210 nano-technology
business
energy
Zdroj: European Journal of Mechanics-A/Solids
European Journal of Mechanics-A/Solids, 1998, 17 (2), pp.237-251. ⟨10.1016/S0997-7538(98)80084-3⟩
European Journal of Mechanics-A/Solids, Elsevier, 1998, 17 (2), pp.237-251. ⟨10.1016/S0997-7538(98)80084-3⟩
ISSN: 0997-7538
DOI: 10.1016/S0997-7538(98)80084-3⟩
Popis: International audience; In spite of the great number of high cycle multiaxial fatigue in the literature, none predicts the difference that exist between the endurance limits in tension, four point rotative bending and four point plane bending. An enerdy based criterion based on a new concept using the strain energy density is proposed in the paper. This new calculation method explains the previous differnces by taking into account the volumic distribution of the strain energy density around the considered critical point in fatigue. This method, available now under fully reversed mutiaxial loadings, also takes into account the stress state triaxiality. Under combined plane bending and torsion the predictions of the new proposal lead to Gough and Pollard's ellipse quadrant for ductile materials and lead to a curve close to an ellipse arc for brittle materials. Under other multiaxial loadings, predictions are always close to an ellipse quadrant dependent on the loading mode. This method has been tested on smooth cylindrical specimens with several materials; calculations are in very good agreements with multiaxial experimental data.
Databáze: OpenAIRE
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