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Subject: Re: STRUC: Query-Brick and tetrahederal elements
Author: Marco Perucchi
Date: 2002-10-17 07:45:00

> I had modelled a solid with brick 185 elements. I got the
maximum
> deflection of arround 0.23mm. But when I modelled it with
tetrahederal
> 187 elements, I got a maximum deflection of around 0.22 mm. Which of
> the two is more accurate. I had taken around the same number of
nodes
> for both the elements.

I apologize for my first reply without reading your question
carefully enough and misinterpreting it.

Apparently you are comparing bricks without midside nodes (SOLID185)
and tets with midside nodes (SOLID187). In general it can be said
that a mesh which is too coarse is also too stiff. That means the FE
model which has larger deflections is closer to reality. Therefore
the results of your brick model would be more trustworthy.

Marco Perucchi
Delta JS AG
(www.delta-js.ch)
Zurich, Switzerland
Posts possibly associated with message #42808AuthorDateScore
42805STRUC: Query-Brick and tetrahederal elementsBoidurja Talukdar2002/10/17 
42807Re: STRUC: Query-Brick and tetrahederal elementsMarco Perucchi2002/10/17 
42808Re: STRUC: Query-Brick and tetrahederal elementsMarco Perucchi2002/10/17 
42809Re: STRUC: Query-Brick and tetrahederal elementsBoidurja Talukdar2002/10/17 
42839Re: STRUC: Query-Brick and tetrahederal elementsMarco Perucchi2002/10/18