http://www.lagamine.uliege.be/dokuwiki/ 2026-05-17T16:26:08+0200 http://www.lagamine.uliege.be/dokuwiki/ http://www.lagamine.uliege.be/dokuwiki/lib/tpl/dokuwiki/images/favicon.ico text/html 2020-08-25T15:46:38+0200 Anonymous (anonymous@undisclosed.example.com) http://www.lagamine.uliege.be/dokuwiki/doku.php/optim/files?rev=1598363198&do=diff Optim input files Contrarily to the input files of Lagamine, most of the input files for Optim are not formatted, which means numbers don't need to be put in a specific number of columns. ---------- *.info file Description The *.info file is the main file for Optim. It contains the names and path to the files for simulations and reference curves, and several optimization parameters. Note that the execution files and input files for Optim should all be placed in the same folder as the *.info… text/html 2020-08-25T15:46:38+0200 Anonymous (anonymous@undisclosed.example.com) http://www.lagamine.uliege.be/dokuwiki/doku.php/optim/ident?rev=1598363198&do=diff List of IDENT IDENT that can be used for general cases IDENTCurve n°Curve 1800 1 Time - $\sigma_{11}$ 1801 1 Time - $\sigma_{11}$ 2 Time - $\sigma_{11}$ 1820 1 Time - $\sigma_{11,eng}$ (engineering stress) 1821 1 Time - $\sigma_{11,eng}$ (engineering stress) 2 Time - $\sigma_{11,eng}$ (engineering stress) 3 Time - $\sigma_{11,eng}$$\sigma_{11,eng}$$\sigma_{amp,11}$$\sigma_{amp,11}$$D_{tot}=D_f+D_c$$\varepsilon_{11}$$\Delta L$$\sigma_{rel}$$\sigma_{amp,11}$$\sigma_{rel}… text/html 2020-08-25T15:46:38+0200 Anonymous (anonymous@undisclosed.example.com) http://www.lagamine.uliege.be/dokuwiki/doku.php/optim/sidebar?rev=1598363198&do=diff Home OPTIM * User guide * Input files * Examples text/html 2022-03-25T11:48:30+0200 Anonymous (anonymous@undisclosed.example.com) http://www.lagamine.uliege.be/dokuwiki/doku.php/optim/start?rev=1648205310&do=diff OPTIM: Parameter optimization tool for Lagamine ---------- Objective This optimization program allows the identification of the values of parameters likely to minimize an objective function representing the difference between two curves. The program will take a reference curve as an input (an experimental curve for instance) and will attempt to approach this curve with the finite element code Lagamine using different parameters obtained through the \[S=\sqrt{\displaystyle\sum_{i=1}^{n_{total}… text/html 2022-05-27T10:05:27+0200 Anonymous (anonymous@undisclosed.example.com) http://www.lagamine.uliege.be/dokuwiki/doku.php/optim/userguide?rev=1653638727&do=diff Optim user guide ---------- Lagamine Inverse The Lagamine Inverse code allows the computation of parameter sensitivity through a semi-analytical calculation. This implementation does not fundamentally change the code, but the simulation with Lagamine Inverse will be made so as to obtain both a reference finite element curve and the derivative of this curve with respect to the specified parameters. $REACTION$$REACTION_P$$REACTION_M$\[DUef_{DX}(I,ILI)=\frac{REACTION_P(I)-REACTION_M(I)}{2*PREC_{…