vanji1
Mechanical
- Jan 14, 2010
- 11
Hello everybody,
My problem is the following.
I am using MSC Nastran for finite element analysis.
There are several options for performing the finite element analysis in term of Gauss integration for CHEXA elements with 8 nodes.
As you know, the complete integration os not appropriate because of shear locking.
I am particular interested in the following option
PSOLID,1,1,,2,, which means that no bubble functions are used and that reduced shear integration is used.
I do not know what shear reduced integration means. I found that this means that flexion is done with full isoparametric 2*2*2 Gauss integration points and shear is done with reduced integration.
It is very important that I understand how this works.
I have a cylindrical bean with shear excitation. (I precise that in my problem I have to used 3D elements). How are
the flexion terms and the shear terms decomposed?
I thank you in advance for your response
Evangeline
My problem is the following.
I am using MSC Nastran for finite element analysis.
There are several options for performing the finite element analysis in term of Gauss integration for CHEXA elements with 8 nodes.
As you know, the complete integration os not appropriate because of shear locking.
I am particular interested in the following option
PSOLID,1,1,,2,, which means that no bubble functions are used and that reduced shear integration is used.
I do not know what shear reduced integration means. I found that this means that flexion is done with full isoparametric 2*2*2 Gauss integration points and shear is done with reduced integration.
It is very important that I understand how this works.
I have a cylindrical bean with shear excitation. (I precise that in my problem I have to used 3D elements). How are
the flexion terms and the shear terms decomposed?
I thank you in advance for your response
Evangeline
