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Digitale Medien

An Anisotropic Model for the Plastic Response of Powder Compacts (2007)

Ruziwa, Walter R. ; Cocks, Alan C.F.

s.l. ; Stafa-Zurich, Switzerland

Materials science forum Vol. 561-565 (Oct. 2007), p. 1809-1812

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Details

ISSN: 1662-9752

Quelle: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008

Thema: Maschinenbau

Notizen: In this paper we present an anisotropic compaction model based on a genericmodeling framework. The model is a generalization of Hill’s anisotropic model tocompressible materials and reduces to a Cam-clay type model in the isotropic limit. Themodel has been calibrated using experimental data for a commercial steel powderobtained from a computer controlled triaxial cell in which the yield surface was probedfollowing loading along different paths in stress and strain space. Closed-formanalytical expressions are presented for the yield surface as a function of the inelasticstrain. The model has been implemented in the general purpose finite element codeABAQUS. Simulations are presented which explore the effect of a detailed structure ofthe constitutive law on the compaction response

Materialart: Digitale Medien

URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.561-565.1809.pdf

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