This note presents an experimental analysis and a numerical simulation of the mechanical behavior experienced by cylindrical specimens of pure copper during the tensile test. A set of experiments has been carried out in order to derive the hardening parameters that characterize the material response. The simulation of the deformation process during the whole test is performed with a finite element large strain elastoplasticity-based formulation. The results of the simulation show that the mechanical characterization involving the classical Bridgman correction factor, defined in terms of logarithmic strains and aimed at predicting the stress distribution at the necking zone, cannot properly describe the hardening response for this material. Therefore, the use of a different correction factor, which consequently leads to another set of hardening parameters, is proposed. Finally, an adequate experimental validation of the numerical results is obtained for this last case.
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e-mail: dcelenta@lauca.usach.cl
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January 2005
Brief Notes
Analysis of the Bridgman Procedure to Characterize the Mechanical Behavior of Materials in the Tensile Test: Experiments and Simulation
Diego J. Celentano,
e-mail: dcelenta@lauca.usach.cl
Diego J. Celentano
Departamento de Ingenierı´a Meca´nica, Universidad de Santiago de Chile, Av. Bdo. O’Higgins 3363, Santiago, Chile
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Eduardo E. Cabezas and,
Eduardo E. Cabezas and
Departamento de Ingenierı´a Meca´nica, Universidad de Santiago de Chile, Av. Bdo. O’Higgins 3363, Santiago, Chile
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Claudio M. Garcı´a
Claudio M. Garcı´a
Departamento de Ingenierı´a Meca´nica, Universidad de Santiago de Chile, Av. Bdo. O’Higgins 3363, Santiago, Chile
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Diego J. Celentano
Departamento de Ingenierı´a Meca´nica, Universidad de Santiago de Chile, Av. Bdo. O’Higgins 3363, Santiago, Chile
e-mail: dcelenta@lauca.usach.cl
Eduardo E. Cabezas and
Departamento de Ingenierı´a Meca´nica, Universidad de Santiago de Chile, Av. Bdo. O’Higgins 3363, Santiago, Chile
Claudio M. Garcı´a
Departamento de Ingenierı´a Meca´nica, Universidad de Santiago de Chile, Av. Bdo. O’Higgins 3363, Santiago, Chile
Contributed by the Applied Mechanics Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF APPLIED MECHANICS. Manuscript received by the ASME Applied Mechanics Division, May 18, 2004, final revision, June 17, 2004. Editor: R. M. McMeeking.
J. Appl. Mech. Jan 2005, 72(1): 149-152 (4 pages)
Published Online: February 1, 2005
Article history
Received:
May 18, 2004
Revised:
June 17, 2004
Online:
February 1, 2005
Citation
Celentano , D. J., Cabezas and , E. E., and Garcı´a , C. M. (February 1, 2005). "Analysis of the Bridgman Procedure to Characterize the Mechanical Behavior of Materials in the Tensile Test: Experiments and Simulation ." ASME. J. Appl. Mech. January 2005; 72(1): 149–152. https://doi.org/10.1115/1.1827243
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