Hi,
While using patch command for making fiber sections, is it necessary to follow the corners in a "counterclockwise" manner?! or we can follow a clockwise cycle as well?
Thanks a lot.
patch command in fiber sections
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Re: patch command in fiber sections
why don't you build 1 rectangular section using one patch command and see for yourself.
i don't mean to be smart but it is usually educational if you experiment for yourself and you will probably remember the answer in the future if you learn it that way as opposed to me telling you.
i don't mean to be smart but it is usually educational if you experiment for yourself and you will probably remember the answer in the future if you learn it that way as opposed to me telling you.
Re: patch command in fiber sections
Dear Prof. McKenna,
Thanks for not letting me stay lazy
. I did it and was informed that the results become different! But could you give me a clue what the reason is? I will follow your hint on my own. Thanks a lot.
Thanks for not letting me stay lazy
. I did it and was informed that the results become different! But could you give me a clue what the reason is? I will follow your hint on my own. Thanks a lot.Re: patch command in fiber sections
it has to do with how the student programmed the code .. instead of keeping in xyz coordinate system he decided to be smart and use transform to a natural coordinate system and shape functions (he used same natural system and shape function used for a quad element in continuum finite element code) .. as such order does matter, try a simple quad element and order nodes in wrong way and you get a negative Jacobian and stiffness matrix even with an elastic material.