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Subject: Re: Hex & Tet elements
Author: Roberto Muccini
Date: 1998-12-14 04:20:00Ng Siu Wai, Alex wrote:
> From: "Ng Siu Wai, Alex"
> -----Original Message-----
> From: Binxin Wang [SMTP:wangbinxin@h...]
>
> Sent: Friday, December 11, 1998 10:59 PM
> To: feusers@m...
> Subject: Hex & Tet elements
> Dear all,
> Can any one there provide any reference explaining theoretically why linear
> Hex elements produce better results than Tet elements.
> Thanks in advance.
> Regards.
> Binxin
FE routines calculate results in a fixed number of points for each
elements (Gauss points) then average across the element. The accuracy of
results is function of the number of this points (then the interpolation
function order): e.g. if you have two points you can use a linear
function, if three a quadratic, ecc.
This are only few words about this matter. You can find exhaustive
explanation in every basic FE book.
For example:
Cook et al. "Concepts and applications of finite elemnt analysis",
second edition, John Wiley and Sons, New York 1981
Bathe et al. "Finite element Procedures in Engineering Analysis",
Prentice Hall, Englewood Cliffs 1982
Zienkiewicz et al. "The finite element method", Mc-Graw Hill Company,
London 1977
Hope this helps
Roberto Muccini
Muccini Roberto
Laboratorio di Tecnologia dei Materiali tel. +39-(0)51-6366864550
Istituti Ortopedici Rizzoli fax. +39-(0)51-6366863
via di Barbiano 1/10 e-mail:muccini@t...
40136 Bologna, Italy