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Wierd problem with Table and Evaluate

You need to use v on the correct part of the solution as follows ...
• 108k

Solving System of six Non-Linear Equations in Six Unknowns

You only get exact solution of equations with all variables positive for all variables going to Infinity. But as you mentioned yourself, there is solution with some variables negative. ...
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1 vote

Solving System of six Non-Linear Equations in Six Unknowns

I suspect your system does not have a positive real solution. Let eqs be your equation list, and introduce dummy variable q. <...
• 12.3k
Just in case you need a parametric von Mises yield criterion equation for plane stresses. Von Mises yield criterion: $\sigma_{1}^{2} - \sigma_{1}\sigma_{2} + \sigma_{2}^{2} = \sigma_{y}^{2}$ were \$\...