Forming limit diagram with strains

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Zifeng Qiu
Zifeng Qiu 2021-3-24
评论： Ananya Tewari 2021-3-31
Hi, I was trying to recreate the forming limit diagram that was given from my professor, when strain3 is equal to 0.1, 0, -0.1 and -0.2. For some reasons I am not getting it. Any reasons why?
trueStrain2 = linspace(-0.5,0.5,100);
trueStrain1a = 0.0953-trueStrain2-0.1; % for deltaT = +10%
engStrain2a = exp(trueStrain2)-1;% minor eng strain
engStrain1a = exp(trueStrain1a)-1; % major eng strain
trueStrain1b = -trueStrain2; % for deltaT = 0
engStrain2b = exp(trueStrain2)-1; % minor eng strain
engStrain1b = exp(trueStrain1b)-1; % major eng strain
trueStrain1c = -0.1054-trueStrain2+0.1; % for deltaT = -0.1
engStrain2c = exp(trueStrain2)-1; % minor eng strain
engStrain1c = exp(trueStrain1c)-1; % major eng strain
trueStrain1d = -0.22314-trueStrain2+0.2; % for deltaT = -0.2
engStrain2d = exp(trueStrain2)-1; % minor eng strain
engStrain1d = exp(trueStrain1d)-1; % major eng strain
figure;
plot(engStrain2a,engStrain1a);
hold on
plot(engStrain2b,engStrain1b);
plot(engStrain2c,engStrain1c);
plot(engStrain2c,engStrain1c);
  2 个评论
Mathieu NOE
Mathieu NOE 2021-3-25
hello
where do the equations from your code come from ?
Ananya Tewari
Ananya Tewari 2021-3-31
Please provide more information on the equations from your code and confirm whether they are correct.

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