What is wrong with my code
5 views (last 30 days)
Show older comments
N = 16;
E = 200e9; % Young Modulus (Pa)
b = 0.1; % Top width (m^2)
a = 0.025; % Bottom width (m^2)
L = 1.0; % Length (m)
rho = 77e3; % Force density (N/m^3)
Le = L./N;
ff = 0;
for i = 1:N
w(i)=(((i-0.5).*Le)*((b-a)./L))+a; %Calculates avg width (m)
A(i)=w(i).^2; %Calculates element area (m^2)
k(i) = A(i)*E/Le; %Local Stiffness Matrix constact
f(i) = ff*A(i)*le*rho/2; %Local Force Matrix constant
end
KG = zeros(N+1,N+1)
FG = zeros(N+1,N+1)
for ii = 1:N
KG(ii:ii+1,ii:ii+1)=KG(ii:ii+1)+k(i);
FG(ii:ii+1,ii:ii+1)=FG(ii:ii+1)+f(i);
end
Displacement = inv(KG)*FG;
plot(N,Displacement,'b');
hold on
plot(N,Displacement,'*','color','r')
ylabel('end deflection in mm');
xlabel('no of element')
5 Comments
Answers (1)
Dinesh Yadav
on 23 Jul 2020
Change to the following code
len = length(N) %N is 1x100 you want i to go from 1 to 100 therefore change to length(N) instean of N
for i = 1:len
w(i)=(((i-0.5)*Le(i))*((b-a)/L))+a; % Le is also 1x100 you want to take one elsment at a time use Le(i)
A(i)=w(i).^2; %
k(i) = (A(i)*E/Le(i));%*[1 -1;-1 1]; %
f(i) = (ff*A(i)*Le(i)*rho/2);%*[1;1]; %
end
KG = zeros(len+1,len+1);
FG = zeros(len+1,len+1);
for i = 1:len
0 Comments
See Also
Categories
Find more on Spectral Measurements in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!