pmake engineering stress and strain diagram
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F=[0;13345;26689;40479;42703;43592;44482;44927;45372;46276;47908;49035;50265;53213;56161];
L=[25;25.037;25.073;25.113;25.122;25.125;25.132;25.144;25.164;25.208;25.409;25.646;26.084;27.398;29.150];
r=6.4;L1=25;A=pi*r^2;
Es=F./A; Et=(L-L1)/L1; %Es=Engineering stress and Et=Engineering strain
Ts=(F.*L/A*L1);Tt=log(L/L1); %Ts=true stress and Tt=true strain
plot(Et,Es)
hold on
plot(Tt,Ts)
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Answers (1)
VBBV
on 11 Dec 2021
Edited: VBBV
on 11 Dec 2021
F=[0;13345;26689;40479;42703;43592;44482;44927;45372;46276;47908;49035;50265;53213;56161];
L=[25;25.037;25.073;25.113;25.122;25.125;25.132;25.144;25.164;25.208;25.409;25.646;26.084;27.398;29.150];
r=6.4;
L1=25;
A=pi*r^2;
Es=F./A;
Et=(L-L1)/L1; %Es=Strain is DeltaL/L
Ts=Es.*(1+Et); % change this line
Tt=log(L/L1); %Ts=true stress and Tt=true strain
plot(Et,Es,'--','linewidth',2)
hold on
plot(Tt,Ts,'linewidth',2)
legend('Engineering','True','Location','Southeast')
Change the True stress line
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