You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
1.8 KiB
80 lines
1.8 KiB
function homogenization_after_smooth_averaged()
|
|
resolution=25; h =1.0/resolution;
|
|
[D0,Ke,Fe] = LocalSMRT(resolution);
|
|
intB = GaussIntB(h);
|
|
[eleidx,mesh,VE]=periodicMesh(resolution);
|
|
nele=size(mesh,1);nnode = size(VE,1);
|
|
edofMat = zeros(nele,24);
|
|
edofMat(:,1:3:24) = mesh.*3-2;
|
|
edofMat(:,2:3:24) = mesh.*3-1;
|
|
edofMat(:,3:3:24) = mesh.*3;
|
|
|
|
load('voxel_afterSmooth25.mat', 'voxel')
|
|
nx=60;ny=1;nz=20;
|
|
DH=cell(nx,ny,nz);
|
|
|
|
|
|
ix=20;iy=1;iz=10;
|
|
for ix=1:nx
|
|
for iy=1:ny
|
|
for iz=1:nz
|
|
VOXEL_ele = voxel((iy-1)*resolution+1:iy*resolution,...
|
|
(ix-1)*resolution+1:ix*resolution,...
|
|
(iz-1)*resolution+1:iz*resolution);
|
|
|
|
|
|
u = FEA_homo(resolution,VOXEL_ele,edofMat,Ke,Fe);
|
|
DH{ix,iy,iz} = Disp2DH(VOXEL_ele,u,edofMat,D0,intB,h);
|
|
% DH{ix,iy,iz} = max(DH{ix,iy,iz},D0.*1e-6);
|
|
end
|
|
end
|
|
end
|
|
save DH_afterSmooth25_averaged.mat DH
|
|
end
|
|
|
|
function DH = Disp2DH(voxel,u,edofMat,D0,intB,h)
|
|
%intB: 6x24,
|
|
% ue : nelex24
|
|
x_vec=voxel(:);
|
|
nele = size(edofMat,1);
|
|
DH=zeros(6,6);
|
|
|
|
I=eye(6);
|
|
|
|
for iele=1:nele
|
|
edof = edofMat(iele,:);
|
|
uie=u(edof,:);
|
|
|
|
material=x_vec(iele);
|
|
De=D0*material;
|
|
tmp = (I*h^3-intB*uie);
|
|
DH=DH+De*tmp;
|
|
|
|
end
|
|
% disp(DH2)
|
|
end
|
|
|
|
function u = FEA_homo(num,x,edofMat,Ke,Fe)
|
|
nele = num^3; nnode = num^3;
|
|
iK = reshape(kron(edofMat,ones(24,1))',24*24*nele,1);
|
|
jK = reshape(kron(edofMat,ones(1,24))',24*24*nele,1);
|
|
sK = reshape(Ke(:)*(x(:).'),24*24*nele,1);
|
|
K = sparse(iK,jK,sK);
|
|
|
|
iK = reshape(kron(edofMat,ones(6,1))',24*6*nele,1);
|
|
jK = reshape(kron(repmat([1 2 3 4 5 6],[nele,1]),ones(1,24))',24*6*nele,1);
|
|
sK = reshape(Fe(:)*(x(:).'),24*6*nele,1);
|
|
F = sparse(iK,jK,sK);
|
|
|
|
% u = zeros(nnode*3,6);
|
|
% tic
|
|
% u(4:end,:)=K(4:end,4:end)\F(4:end,:);
|
|
% toc
|
|
|
|
u = zeros(nnode*3,6);
|
|
% tic
|
|
for i=1:6
|
|
u(4:end,i)=pcg(K(4:end,4:end),F(4:end,i),1e-4,500);
|
|
end
|
|
% toc
|
|
end
|