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====== Appendix 3: Non radial loading paths (2) ======

One can impose a priori the history, according to time, of the imposed forces multiplier (FMULT), and/or the imposed displacements multiplier (DMULT). \\ 
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This is particularly useful for modelisations where the loading speed influences the result (viscous materials, the dynamics, etc.) and where the loading history is no more monotonous. \\ 
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The multipliers FMULT and DMULT are saved on the file n° 33 (NAMDAT.LIC). The variable IPRES = 8, or IPRES = 18 (combined with NAMDAT.DEP), or IPRES = 28 (combined with NAMDAT.LOA), or IPRES = 38 (combined with NAMDAT.DEP and NAMDAT.LOA), orders the reading of the file (in LAMIN2). \\ 
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The file n° 33 has a special format. Its structure is described hereafter :
^1st group (2I5, 1G10.0) ^^
|NPAS |Number of definition moments of the imposed values|
|IFOR| = 1 if the format of the group 2.2. is read|
|:::|= 0 if the format by default of the group 2.2. is used |
|Freq_lic|= 0 for non cyclic values of the imposed multiplier \\ > 0 frequency of the change of multiplier(s) \\ < 0 abs(freq_lic)=period of the change of multiplier|
^if IFOR = 1 (A70)^^
|FORMT |Format of the group 2.2., in parentheses \\ ex. (2I5, G15.0)|
^2nd groups : NPAS groups of two set of results ^^
|2.1. 1st line of the group (G15.0)||
|TIME | Definition moment of the multipliers. This moment is compared to the accumulated time, sum of the DELTAT given in the command file. A linear interpolation is realized if a computation step is situated between two definition moments.|
|2.2. 2nd line of the group (2G10.0 or FORMT) ||
|FMULT| imposed forces multiplier|
|DMULT| imposed displacements multiplier|
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