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Assembly stiffness matrix on matlab

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Barone pierre
Barone pierre 2018-2-17
Hello everybody, I need some help to assembly three matrix on matlab in order to have the global stiffness matrix of these elements.
I obtain one code on internet, but it doesn't give the good solution ...
function [K,f]=assem(edof,K,Ke,f,fe) % with Ke: stiffness matrix of elements and K:global stiffness matrix
[nie,n]=size(edof);
t=edof(:,2:n);
for i = 1:nie
K(t(i,:),t(i,:)) = K(t(i,:),t(i,:))+Ke;
if nargin==5
f(t(i,:))=f(t(i,:))+fe;
end
end
This code changes the first matrix of the element 1 ...
Kind regards

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