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Can the transformation matrix of a 3-D beam element have any zeros in its diagonal?

Submitted by Gallardo560 on
research

Hello,

I am trying to solve the global stiffness matrix for a component assumed to be a series of 3-D beam elements.

Some of the diagonal elements of the transformation matrix are zeros and i eventually end up in finding the inverse of a matrix with some zeros in  its diagonal which is not possible.

Can anyone let me know if the transformation matrix can have zeros along its diagonal?

Thank you.

 

Finite Element Method.

Submitted by Gallardo560 on
Finite element method.

Hello,

I would like to develop a Program for finding the Stiffness of a stabilizer bar using FE methods.

I have a fairly good idea about FE methods as to how to proceed but the books i referred to mostly dealt with symmetric solids.

Can someone throw light on FE procedure for such component with a complicated shape(or some books that deal with 3D assymmetric solids)..??

Thanks.

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