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Remarks Concerning Samcef

From Paul CARRICO (2006/04/17)
BASIC TUTORIAL FOR HOWTO USE THE SAMCEF EXPORT FORMAT

    1- Definition of the points
    K: pnt p0 0 0 0
    K: pnt p1 1 0 0
    K: pnt p2 0 1 0
    K: pnt p3 2 1 0
    K: plot pa all

    2- Definition of the lines
    K: plus l all
    K: qlin (link the points p0 p1 p3 p2 p2 p0)

    3- Creation of the first surface
    K: qsur

    4- Creation of l0 (between p0 & p1) and l1 (between p1 & p3) sets
    K : qadd lo
    K : qadd l1

    4- Creation of the 2 other surfaces
    K : swep l0 l1 tra 0 -3 0
    K : swep l1 l1b tra -3 0 0

    5- Creation of the SYMETRY set
    K : plot s all
    K : qadd SYMETRY (use both a and rr keys to select all the surfaces)

    6- Creation of the volumes
    K : swep SYMETRY s1 swep tra 0 0 1 (all the volume will be automatically
    created)

    7- Looking for common points, lines and surfaces
    In the order :
    K : merg p all
    K : merg l all
    K : merg s all

    8- Creation of the LOAD set and ANCHORAG one
    K : qadd LOAD (use rr keys to select the surface)
    K : qadd ANCHORAG (use rr keys to select the surface)

    NOTA : It's easy to verify the different sets ; for example :
    K : plot b all (you can see all the volumes)
    K : plus s LOAD (you can see the set LOAD)
    K : plus s ANCHORAG
    K : plus s SYMETRY

    9 - Mesh
    K : plot ld all
    K : div all mult 2
    K : elty all HE20 (to specify HEXAHEDRA with 20 nodes)
    K : elty LOAD qu8 (to mesh the set LOAD otherwise no quads will be created)
    K : elty ANCHORAG qu8
    K : elty SYMETRY
    K : mesh all (to mesh the part with all.dat name)
    K : send all sam (to export the mesh into Samcef format)
    K : send LOAD sam nam (to export groups into Samcef format)
    K : send ANCHORAG sam nam (see previous remark)
    K : send SYMETRY sam nam

    10- Modifications
    It's possible now to make some modifications :
    a- open all.dat file with your favorite text editor (Vi for me)
    b- open ANCHORAG.nam & the SYMETRIC.nam files and do the same as previously
    c- concatenate under Linux the files using the following schema :
            cat all.dat LOAD.nam > s1.m
            cat s1.m ANCHORAG.nam > s2.m
            cat s2.m SYMETRY.nam > part.dat
    (all the sx.m files will be erased afterward)
    d- open PART.dat file and go to the end => then add RETURN
    e- the mesh file now works with Samcef

    Another interesting way : add for each .nam file an input in your bank file:
    input ''part.dat''
    input ''LOAD.nam''
    input ''ANCHORAG.nam''
    etc. ...

    11 IMPORTANT REMARK

    After, it's possible to modify the mesh into BACON (extrusions, etc. ...) ;
    that's why the element hypothesis is not added at the end of the file ;
    => you must define the element definition AFTER the last mesh modification
    (.HYP MINDLIN)

    12- Comments

    if you've any remark or any comment or any suggestion to improve this export
    format, please send a mail to paul.carrico_at_free.fr