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1 function [U]=FE(nelx,nely,x,penal)
2 [KE] = lk;                %µ¥Ôª¸Õ¶È¾ØÕó
3 K = sparse(2*(nelx+1)*(nely+1), 2*(nelx+1)*(nely+1));   %×ÜÌå¸Õ¶È¾ØÕóµÄÏ¡Êè¾ØÕó
4 F = sparse(2*(nely+1)*(nelx+1),1); U = zeros(2*(nely+1)*(nelx+1),1); %Á¦¾ØÕóµÄÏ¡Êè¾ØÕó
5 for elx = 1:nelx
6   for ely = 1:nely
7     n1 = (nely+1)*(elx-1)+ely;
8     n2 = (nely+1)* elx   +ely;              
9     edof = [2*n1-1; 2*n1; 2*n2-1; 2*n2; 2*n2+1; 2*n2+2; 2*n1+1; 2*n1+2];   %ÕâÀïµÄYÖáÊÇ·´ÏòµÄ£¬µ«ÊDz»Ó°Ïì×îºóµÄ½á¹û£¬ÏêÇéÇë¼û¶þÂ¥TYNGODÕâλ¸ßÊֵĽâÊÍ£¬¸ÐлTYNGOD¡£
10    K(edof,edof) = K(edof,edof) + x(ely,elx)^penal*KE;   %½«µ¥Ôª¸Õ¶È¾ØÕó×é×°³É×ܵĸնȾØÕó
11  end
12end

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