Abstract
The change in volume, and therefore the change in mass density, of an aluminum alloy was measured in uniaxial tension using clip-on extensometers. The experimental data do not agree with the assumption of plastic incompressibility found in the classical theories of plasticity. In fact, the elastic and plastic volume changes are of the same order of magnitude. Plastic anisotropy is thought to be the prime cause of this plastic compressibility.
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References
Mendelson, A., Plasticity: Theory and Application, Macmillan, New York, 100–104 (1968).
Bridgman, P.W., “Studies in Large Plastic Flow and Fracture with Special Emphasis on the Effects of Hydrostatic Pressure, McGraw-Hill, New York, 193–214 (1952).
Ibid.,,213.
Krempl, E. andHewelt, P., “The Constant Volume Hypothesis for the Inelastic Deformation of Metals in the Small Strain Range,”Mech. Res. Comm.,7,283–288 (1980).
Garofalo, F. andWriedt, H.A., “Density Change in an Austenitic Stainless Steel Deformed in Tension or Compression,”Acta. Met.,10,1007–1012 (1962).
Franz, R.E., “The Measurement of Large Strains with Foil Resistance Strain Gages,”Tech. Rep. ARBRL-TR-02519, US Army Ballistic Res. Lab., Aberdeen Proving Ground, MD (1983).
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Freed, A.D., Sandor, B.I. The plastic compressibility of 7075-T651 aluminum-alloy plate. Experimental Mechanics 26, 119–121 (1986). https://doi.org/10.1007/BF02320002
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DOI: https://doi.org/10.1007/BF02320002