Nastran reduced shear integration
Nastran reduced shear integration
(OP)
Hello
In Nastran, for CHEXA elements, what is reduced shear integration?
Sincerely yours,
In Nastran, for CHEXA elements, what is reduced shear integration?
Sincerely yours,





RE: Nastran reduced shear integration
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But generally, reduced shear integration is a numerical technique used to reduce the problem of "shear locking" or overly stiff results.
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RE: Nastran reduced shear integration
Nevertheless, what I am exactly looking for is the numerical method used by Nastran for reducing the stiffness. In the manual, this is not very clear, they are talking about underintegrating some terms. Nevertheless, this is not true. When exporting a elementary matrix, I see that Nastran remove 10% of the diagonal term and some terms are removed by 5% and others 2.5%. I would like to know what Nastran does exactly. If it exists a paper about the algorithm used by Nastran, this would help for my present analysis.
Sincerely yours
Evangeline
RE: Nastran reduced shear integration