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Hasan
Hasan 2024-12-21，18:50
评论： Hasan 2024-12-21，19:26
there are the values i calculate but i cannot see graph in plotting. anybody help me? here my code:
clc
clear all
close all hidden
P=1; % assuming and constant
Ex=20*10^4;
Ey=2*10^4;
Ea=0.1*10^4;
k=0.1;
t=0.01;
b=0.05;
h=0.1;
ExGxy=17;
Ah=((Ex/Ey)^0.25)*(k*(Ey/Ea)+0.5)/3;
a=(0.01:0.005:0.08);
fprintf('%10s %10s\n','Energy Release Rate','Crack Length');
for a=0.01:0.005:0.08
G= (P^2/(Ex*b^2*h))*((12*(a/h+1/Ah)^2)+1.2*ExGxy);
fprintf('%10.4f %10.4f \n', G, a)
end
figure, plot(a, G,'k-'), axis equal;
xlabel('Crack Length (a)'), ylabel('Energy Release Rate (G)');

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回答（1 个）

Torsten
Torsten 2024-12-21，19:03
编辑：Torsten 2024-12-21，19:25
Ran in:
P=1; % assuming and constant
Ex=20*10^4;
Ey=2*10^4;
Ea=0.1*10^4;
k=0.1;
t=0.01;
b=0.05;
h=0.1;
ExGxy=17;
Ah=((Ex/Ey)^0.25)*(k*(Ey/Ea)+0.5)/3;
a=(0.01:0.005:0.08);
fprintf('%10s %10s\n','Energy Release Rate','Crack Length');
Energy Release Rate Crack Length
for i=1:numel(a)
G(i)= (P^2/(Ex*b^2*h))*((12*(a(i)/h+1/Ah)^2)+1.2*ExGxy);
fprintf('%10.4f %10.4f \n', G(i), a(i))
end
0.5521 0.0100 0.5713 0.0150 0.5917 0.0200 0.6133 0.0250 0.6361 0.0300 0.6601 0.0350 0.6853 0.0400 0.7116 0.0450 0.7392 0.0500 0.7680 0.0550 0.7980 0.0600 0.8292 0.0650 0.8616 0.0700 0.8952 0.0750 0.9300 0.0800
figure, plot(a, G,'k-'), axis equal;
xlabel('Crack Length (a)'), ylabel('Energy Release Rate (G)');

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