CONTRIBUTION TO THE DETERMINATION OF THE LAWS OF BEHAVIOUR OF COLD METALS BY COMPRESSION TESTING

CONTRIBUTION A LA DETERMINATION DES LOIS DE COMPORTEMENT DES METAUX A FROID PAR L'ESSAI DE COMPRESSION

The limiting creep stress of metals utilized in manufacturing procedures is generally determined by a uniaxial tensile test. The experimental results are then identified either by means of a rigid plastic model or by a cold drawn plastic model of potential shape. An analysis op the results of the compression tests on a cylindrical sample, allied to the results of compression tests on a ring, makes it possible (taking into account the effects of friction between the test plate and the sample according to the Coulomb model), to determine the limiting creep stress for rates of deformation which are much higher than those of the tensile test. The identification of the experimental behaviour law for the material, drawn up for a plastic cold drawn model of hyperbolic form, is a better method of identification than the use of the exponential model. The two coefficients for the cold drawn hyperbolic model are excellent parameters for characterising the mechanical properties of metals, whatever the rate of deformation envisaged. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03990842
• Corporate Authors:

  Gauthier-Villars

  70 rue de Saint-Mande
  Montreuil Cedex,   France 
• Authors:
  • OUDIN, J
  • RAVALARD, Y
• Publication Date: 1978

Language

• French

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 19-46
• Serial:
  • Journal de Mecanique Appliquee
  • Volume: 2
  • Issue Number: 1
  • Publisher: Gauthier-Villars
  • ISSN: 0399-0842

Subject/Index Terms

• TRT Terms: Circles; Cold working; Compression; Compression tests; Creep; Cylinders (Geometry); Deformation; Friction; Manufactures; Mathematical models; Metals; Samples; Stresses; Tension tests; Tests
• Old TRIS Terms: Tensile test
• ITRD Terms: 6423: Circle; 5532: Compression; 4732: Creep (mater); 6458: Cylinder (math); 5595: Deformation; 5452: Friction; 3647: Manufacture; 6473: Mathematical model; 4543: Metal; 6251: Sample (mater); 5575: Stress (in material); 6255: Test
• Subject Areas: Geotechnology; Highways; Materials; I34: Steels and Metals;

Filing Info

• Accession Number: 00309208
• Record Type: Publication
• Source Agency: Laboratoire Central des Ponts et Chausees (LCPC)
• Files: ITRD, TRIS
• Created Date: May 21 1980 12:00AM