[Getdp] Linear Elasticity Examples

Christophe Geuzaine geuzaine at acm.caltech.edu
Wed Nov 10 22:43:54 CET 2004


Christophe Geuzaine wrote:
>>
>> 2. I also tried a simple model (rectangular beam). I fix the bottom
>> face of the beam and apply a transverse force  either at the top
>> surface or a top edge without further constraints. The solver is
>> hardly converging, just stopping at NB_Max_Iter. The solution gives
>> an "S"-shaped displacement as if there was a z=0 constraint on the
>> top surface. Despite the warning in the Wiki to use the exmples and
>> operators at own risk: Do you have an idea about where this goes
>> wrong? (I shall attach the files.)
> 
> 
> Actually, it looks good to me: you impose a zero displacement on the 
> face z=0 and a force along the x-axis direction on the face z=0.05. This 
> will lead to an S-shaped deformation.
> 

You actually have additional constraints in your file due to your 
definition of the "beam" region. I will post a corrected version on the 
wiki.

Best,

Christophe

-- 
Christophe Geuzaine
Applied and Computational Mathematics, Caltech
geuzaine at acm.caltech.edu - http://geuz.org