# [Getdp] (no subject)

Luca Montagliani lucamontagliani at gmail.com
Tue Jul 3 13:09:06 CEST 2018

```Hi All,
My problem is to determine the maximum stress state acting on a structure.
I would therefore like to understand how the .pos file is written in order
to extract the maximum value directly from the file.

Then place an example.
from the .pro file I calculate the stress as:
{Name sigma; Value {
Term {[TensorV [C_xx [] * {d ux} + C_xy [] * {d uy} + C_xz []
* {d uz},
C_yx [] * {d ux} + C_yy [] * {d uy}
+ C_yz [] * {d uz},
C_zx [] * {d ux} + C_zy [] * {d uy}
+ C_zz [] * {d uz}]];
In Vol_Mec; Jacobian Vol; }
}
}
and therefore:
{Name stress; NameOfPostProcessing Elasticity_u;
Operation {
Print [sigma, OnElementsOf Vol_Mec, File "sigma.pos"];
Now the .pos file is:
TS (0.980007811853844,0,1.029813000728299,1.53102112193407,0,1.
252665152081291,1.549809848214138,0,0.7456705669368301,1.
46144890353805,0.025,1.248675086069074) {- 774520.2424171679,
-23285.95950419134,4908270.764450434, -23285.95950419134,
-2549506.633453323, -390329.9668088288,4908270.764450434,
-390329.9668088288, - 362220.4075545655, -774520.2424171679,
-23285.95950419134,4908270.764450434, -23285.95950419134,
-2549506.633453323, -390329.9668088288,4908270.764450434,
-390329.9668088288, -362220.4075545655, -774520.2424171679,
-23285.95950419134,4908270.764450434, -23285.95950419134,
-2549506.633453323, -390329.9668088288,4908270.764450434,
-390329.9668088288, - 362220.4075545655, -774520.2424171679,
-23285.95950419134,4908270.764450434, -23285.95950419134,
-2549506.633453323, -390329.9668088288,4908270.764450434,
-390329.9668088288, -362220.4075545655};

How should I interpret it?