Finite Element method (FEM) for fft and alanyze it
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can you please look at this code, I am not sure what is wrong with the code,
clear all;colordef white;clf
% materials
E = 10e7; poisson = 0.30;
% matriz C
C=E/(1-poisson^2)*[1 poisson 0;poisson 1 0;0 0 (1-poisson)/2];
% load
P = 1e6;
%Mesh generation
Lx=5;
Ly=1;
numberElementsX=20;
numberElementsY=10;
numberElements=numberElementsX*numberElementsY;
[nodeCoordinates, elementNodes] = ...
rectangularMesh(Lx,Ly,numberElementsX,numberElementsY);
xx=nodeCoordinates(:,1);
yy=nodeCoordinates(:,2);
drawingMesh(nodeCoordinates,elementNodes,'Q4','k-');
numberNodes=size(xx,1);
% GDof: global number of degrees of freedom
GDof=2*numberNodes;
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