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Ansys Newbie....thermal + shells - please help!!

Ansys Newbie....thermal + shells - please help!!

Ansys Newbie....thermal + shells - please help!!

(OP)
If someone could help me out and point me in the direction on how to do this, i would really appreciate it.  I have tried everything I can, including google searches, books, etc. to no avail.  I really need the formal training on this s/w package...

Very simple.  I have a rectangle.  I'm using Shell99 with a 10deg fiber angle.  In doing this, if I pull on my rectangle in the X-dir, I get most movement in the Y-dir.  Which is exactly what I want.  Now, I want, instead of physically pulling on it, to apply a temperature at a particular point or along a line, such that my rectangle exhibits this same movement.  (I need it to calculate the energy required internally to get this shape deformation).

Any questions, let me know.  I know this is elemental and everything, but if someone could just take 5 minutes and help me out, I would be forever indebted to you.  I'm getting extremely frustrated and I'm beginning to get lost in the software.  Thanks...

RE: Ansys Newbie....thermal + shells - please help!!

Does it have to be a temperature that is applied? What type of energy are you trying to calculate?

RE: Ansys Newbie....thermal + shells - please help!!

(OP)
It doesn't have to be a temperature that is applied really...I just need it to expand such that I get the same "shear" deformation.  I was going to just calculate the thermal energy input to the model for simplicities sake, unless there is another way of doing it.

Essentially what I'm attempting to model is a very rudimentary version of how a plant's cells will expand locally in order to move (like in the case of a sunflower, for example).  Ideally this would be done in 3D as a tube but I had too many problems doing that so I choose to cut the tube and lay it flat.  The shearing motion I need would create a twisting motion in my 3D tube.

Thanks.

RE: Ansys Newbie....thermal + shells - please help!!

> I have a rectangle.  I'm using Shell99 with a 10deg fiber angle.  In doing this, if I pull on my rectangle in the X-dir, I get most movement in the Y-dir.  Which is exactly what I want.  Now, I want, instead of physically pulling on it, to apply a temperature at a particular point or along a line, such that my rectangle exhibits this same movement.  (I need it to calculate the energy required internally to get this shape deformation).

So why not just apply a pressure/force/displacement to the rectangle edge? Alternatively, apply a force/pressure/whatever and then see what the displacements are and then re-apply these as a single loadcase.

RE: Ansys Newbie....thermal + shells - please help!!

(OP)
>So why not just apply a pressure/force/displacement to the rectangle edge? Alternatively, apply a force/pressure/whatever and then see what the displacements are and then re-apply these as a single loadcase.

And then calculate what, total strain energy?  I tried what you mentioned before, but I'm not sure what energy value I should calculate to give me the most realistic results.  Thats why I was moving to temperature to get a clear cut energy value.  If I'm able to get an accurate energy value from doing it with a pressure along the edge, I'd gladly do it that way.    I just need to know how to calculate said energy value.

RE: Ansys Newbie....thermal + shells - please help!!

(OP)
anyone?  i'm kind of in a bind here... :-(

RE: Ansys Newbie....thermal + shells - please help!!

(OP)
Thanks for all the helpful replies guys.  What a wonderful community you got here. Sorry if I'm dumbing it down.

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