Digitale Medien
s.l. ; Stafa-Zurich, Switzerland
Materials science forum
Vol. 551-552 (July 2007), p. 309-315
ISSN:
1662-9752
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
Superplastic large deformation problems always meet handicaps associated with severemesh distortion and iterative remeshing when traditional mesh-based numerical approaches are used.To eliminate these difficulties, meshless simulation of element free Galerkin method (EFGM) forrigid-viscoplastic(RVP) model and incompressible materials is built upon the Moving Least Squares(MLS) approximation and modified Markov variational principles. Also, a numerical quadrature thataligns integration cells with the local supports of shape functions is presented to compute integrationsinvolved in the objective functions. Satisfying results of a superplastic upsetting example with verylarge compression ratio demonstrate the feasibility and accuracy for the meshfree method to simulatesuperplastic large deformation process
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.551-552.309.pdf
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