solid mesh

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

How to mesh a spherical solid? please help... thank you

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2013

    Hello,

    If you have a sphere primitive, then the best way is to cut the sphere into 4 parts.

    First step: solid edit->trim with line->bounding lines->extend trimmer

    Second step: solid edit->trim with plane->with plane (choose the plane, e.g. x->0,0,0)

    Normally i'm meshing one of the inside surfaces (quarter) with the 2D automesher. Then i'm spinning the mesh by 360 deg and e.g. 24 steps.

    Regards

    Mario

  • tinh
    tinh Altair Community Member
    edited January 2013

    Hi,

    You can mesh a sphere from a cube (hex8 element),

    just split it and then project outer nodes on sphere bound surfs, repeat these two steps until you get enough fine mesh

    To split a hexa you enter split element (Shift+F6)/solid element/split into hexas

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2013

    Thanks a lot....

    I imported an iges model into Hypermesh.... I'm not able to mesh it.... can i be able to post the file..... please kindly help...

    Thanks and regards,

    Padmini

  • tinh
    tinh Altair Community Member
    edited February 2013

    Hi,

    Save below data as a *.fem file and import it (Optistruct template)

    You will understand and be able to mesh a sphere:

    GRID 1 0.0 0.0 0.0

    GRID 2 10.0 0.0 0.0

    GRID 3 10.0 10.0 0.0

    GRID 4 0.0 10.0 0.0

    GRID 5 0.0 0.0 10.0

    GRID 6 10.0 0.0 10.0

    GRID 7 10.0 10.0 10.0

    GRID 8 1.4667-49.9998539.999853

    GRID 9 1.4667-420.000151.4667-4

    GRID 10 9.99985320.000151.4667-4

    GRID 11 9.99985329.999851.4667-4

    GRID 12 1.4667-429.999851.4667-4

    GRID 13 1.4667-420.000159.999853

    GRID 14 9.99985320.000159.999853

    GRID 15 9.99985329.999859.999853

    GRID 16 1.4667-429.999859.999853

    GRID 19 5.0 18.87646-1.12354

    GRID 20 -1.1235425.0 -1.12354

    GRID 21 -1.1235418.876465.0

    GRID 22 11.1235425.0 -1.12354

    GRID 23 11.1235418.876465.0

    GRID 24 5.0 31.12354-1.12354

    GRID 25 11.1235431.123545.0

    GRID 26 -1.1235431.123545.0

    GRID 27 5.0 18.8764611.12354

    GRID 28 -1.1235425.0 11.12354

    GRID 29 11.1235425.0 11.12354

    GRID 30 5.0 31.1235411.12354

    GRID 31 5.0 25.0 -3.66

    GRID 32 5.0 16.34 5.0

    GRID 33 -3.66 25.0 5.0

    GRID 34 13.66 25.0 5.0

    GRID 35 5.0 33.66 5.0

    GRID 36 5.0 25.0 13.66

    GRID 37 5.0 25.0 5.0

    CHEXA 1 0 1 2 3 4 5 6

    + 7 8

    CHEXA 3 0 9 19 31 20 21 32

    + 37 33

    CHEXA 4 0 19 10 22 31 32 23

    + 34 37

    CHEXA 5 0 20 31 24 12 33 37

    + 35 26

    CHEXA 6 0 31 22 11 24 37 34

    + 25 35

    CHEXA 7 0 21 32 37 33 13 27

    + 36 28

    CHEXA 8 0 32 23 34 37 27 14

    + 29 36

    CHEXA 9 0 33 37 35 26 28 36

    + 30 16

    CHEXA 10 0 37 34 25 35 36 29

    + 15 30

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