Assembling local stiffness matrices to global matrice.
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Hello, I have a truss system consisting of 10 elements. I need to find the optimum solution for the section areas which results a specific maximum displacement by F. Here is my question:
The elements are in 2 degrees of freedom system.I wrote the local stiffness matrices (4x4) of each element, but I don't know how to assemble them into (12x12) global stiffness matrix.
2 Comments
Jan
on 15 Apr 2018
Is this a Matlab question or does it concern the scientific part of mechanics?
yasin bestas
on 16 Apr 2018
It concern the mechanics. I wrote stiffness matrix for each element and need to assemble them. Some nodes are common, e.g, node 2 is common for 1st, 2nd, 6th, 8th and 10th. elements for below image. Should I sum the terms in matrices that represents in identic nodes? Or is there a different method?
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on 14 Apr 2018
on 16 Apr 2018
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