buchspektrum Internet-Buchhandlung

Neuerscheinungen 2011

Stand: 2020-01-07
Schnellsuche
ISBN/Stichwort/Autor
Herderstraße 10
10625 Berlin
Tel.: 030 315 714 16
Fax 030 315 714 14
info@buchspektrum.de

Kamal Sharma, Babita Tiwari (Beteiligte)

Parametric Study of Meshless Method for Edge Crack Problem


Element Free Galerkin Method in the Area of Fracture Mechanics
2011. 116 S. 220 mm
Verlag/Jahr: VDM VERLAG DR. MÜLLER 2011
ISBN: 3-639-34612-2 (3639346122)
Neue ISBN: 978-3-639-34612-1 (9783639346121)

Preis und Lieferzeit: Bitte klicken


The element free Galerkin method has been used to solve linear elastic fracture mechanics problems using least square approximations, where the dependent variable at any point is obtained by minimizing a weighted discrete -error norm involving the nodal variable within a small domain surrounding the point. Special techniques are presented for enriching the EFG approximations near the crack tip such as extrinsic and intrinsic enrichment. Extrinsic enrichment involves the addition of solution form to the trial function, whereas the EFG basis is expanded to include few terms from crack tip solution in intrinsic enrichment. Apart from enrichment techniques, four basic techniques of smoothing meshless approximations near nonconvex boundaries are also presented such as diffraction, transparency, see through and wedge model. These techniques are then used for the analysis of an edge crack problem under mode-1 loading. Out of these used techniques, the extrinsic PU enrichment technique was found to be more accurate as compared to other used approaches. Extrinsic PU enrichment technique has also been used for the analysis of a shear edge crack problem.