XANSYS Message: 40980 [Go back to message list]
No rating yet
Rate item:

Subject: Re: Make element KOS orientation parallel to a spline-path (ESYS Command?!)
Author: Tim Atchison
Date: 2002-08-21 12:37:00

Hello Ralf

You might still be OK there. You can set up local coordinate systems
for each element based on node locations and then orient based on
these. I'm away from the computer for the next day or so but might
have a crack at it when I get back.

Cheers

Tim

--- In xansys@y..., r.rienecker@t... wrote:
> Hello Tim,

> Thank you for Your help. I am using Solid95 elements.

> The work a round with the local KOS between keypoints is a lot work
to
> do, I know it, but the problem is also that because of the cubic
spline
> between the KP I don't have to much KPs to point to them.

> http://www-public.tu-bs.de:8080/~y0011169/p3.gif
> http://www-public.tu-bs.de:8080/~y0011169/p2.gif
> http://www-public.tu-bs.de:8080/~y0011169/p1.gif

> The model is parametric so the bigger on the picture loop can differ
> from a circle more than it looks now.
> Maybe if there is a way to get the mathematical description for the
path
> out of Ansys it will be possible to at more points for a better
> orientation of each element?!

> Regards

> Ralf Rienecker

> -------------------------------old
> answer-----------------------------------

> Message: 5
> Date: Mon, 19 Aug 2002 09:04:03 -0000
> From: "tim_atchison"
> Subject: Re: Make element KOS orientation parallel to a spline-path
> (ESYS Command?!)

> Hello Ralf

> What elements are you using to create the mesh? I don't know of
> any "path-orientate" command but if you are just using 2-D
line/beam
> etc elements then they will orient along a path direction
> automatically.

> If you are using solid elements along the path then you could
> automate it by setting up local coordinate systems between each
> defining keypoint and then orienting to those but I thought I would
> check before trying out a macro like that on a Monday morning!

> Regards

> Tim Atchison
> IDAC UK

> --- In xansys@y..., r.rienecker@t... wrote:
> > I am modeling a repeating unit cell of a 8H-Satin fiber composite
> > material. The fiber itself is orthotropic. So I need to orientate
> the
> > x-direction of each element KOS in the fiber along the fiber's
> > geometrical path. To adjust the elastic modulus in the right way.

> > I know that there is simple way to do it in ABAQUS. Does Ansys
> provide a
> > function like this (orientate ESYS along path)? I have looked
> through
> > the old postings, but I couldn't find the right hint.

> > The geometry is to complicated to use ESYS with standard KOS
> > (cylindrical and so on).

> > Do you have an idea for an other keyword to look for in the
> > XANSYS-archive? Or do You know a way to handle this task?

> > If You need more information write me.

> > Thank You very much for your help and ideas in advance.
> > Ralf

> > Version of ANSYS: 6.0 (Win2000) and XANSYS 5.7 (HP)

> > Ralf Rienecker
> > Student of aeronautics
> > G”ttingstr. 29
> > 30106 Braunschweig
> > Germany
> > 0049-511-3884766
> > r.rienecker@t...

Posts possibly associated with message #40980AuthorDateScore
40875Make element KOS orientation parallel to a spline-path (ESYS Command?!)Ralf Rienecker2002/08/17 
40884Re: Make element KOS orientation parallel to a spline-path (ESYS Command?!)Tim Atchison2002/08/19 
40934Re: Make element KOS orientation parallel to a spline-path (ESYS Command?!)Ralf Rienecker2002/08/20 
40980Re: Make element KOS orientation parallel to a spline-path (ESYS Command?!)Tim Atchison2002/08/21