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  • Users: meolo2002
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  1. meolo2002

    Contact test with a cantilevered beam

    Hi to everybody, i'm trying to perform a simple contact test with a cantilevered beam with a stopping bar (see the picture). This test works well for isotropic material, but in the case of laminated composite (plyes are orthotropic 2d) the contact doesn't works and plate goes down over the...
  2. meolo2002

    Patran scripting with python

    Hi to everybody... i know that some MSC products allows scripting with Python code... Is this possible with Patran also? I can't find anything about it... Thank you for helping me, as ever ;)
  3. meolo2002

    Moment distribution along a beam

    Hi to everybody I've a beam with a composite cross section with the lengh in x direction. The beam is oultined as shell elements. I would apply along the beam a flexural moment depending on x coordinate. In few words, you can imagine a ship where the difference betw buoyancy and load generate...
  4. meolo2002

    nonlinear buckling with restart

    hi to everybody... i've some problem with a simple test of a cantilevered beam subject to a compression... the body is made by a solid cylinder. i've preformed nonlinear static analysis at first then restarted from loadstep 5 i get the following error *** USER FATAL MESSAGE 4512 (CASE02)...
  5. meolo2002

    Rotating force

    Sorry about writing about it again, but reply does not work. I want to apply a time radial rotating force to a node. Every 3 seconds the force turns of 360 degs about the node. To give an idea the field should have a similar formula: X=F*sind(360/3*'t) Y=F*cosd(360/3*'t) Z=0 i've tried to...
  6. meolo2002

    Cohesive Zone Modeling

    Hi to everybody, i'm trying to do a simple test on cohesive materials. The model is composed by a cantilevered beam made by two layer of steel glued together by a layer of glue. Working units SI,mm Plate dimension lenght 500mm width 100mm thickness: steel 10mm, glue 5mm, steel 10mm. Type of...
  7. meolo2002

    two questions: parametric sweep and constrain in 2 direction

    Hi to everybody... sorry to bore you in this period with a lot of questions.... I've two distinct problems: [ol 1] i need to perform an analisi on solid mesh made with sweep extrusion.. but i want to investgate the influence of the tickness of the sweeped elements on the structure... i know...
  8. meolo2002

    spatial field

    I've also another problem.. i've to set a radial nodal force on an hald of a cylindre... I've created a cylindrical reference sys on the center of the base of cylinder, R axis on 0° of the cylindre and T along pi.greco/2. the value of the field is 1 R 2 mth_sind(R) 3 Z but the result is not...
  9. meolo2002

    Help warning 4124

    Hi to everybody any ideas about this warning? *** USER WARNING MESSAGE 4124 (IFS3P) THE SPCADD OR MPCADD UNION CONSISTS OF A SINGLE SET. i've never found it before [neutral] it will be something abount costraints... thank you
  10. meolo2002

    Meaning of T1 T2 T3 R1 R2 R3 in Oload

    Hi to everybody! I woould ask you about the meaning of t1 t2 t3 r1 r2 r3...they are related to dof, but i don't understand why if i apply a vertical load (along Y, so under the line FY) it appear on the same line a component R3. Thank you
  11. meolo2002

    Apply a moment to a certain number of nodes

    Hi to everybody, i've this little problem with 1d elements in Patran. I've to comunicate the moment of a crane to a series of node( the base). this crane is placed on a steel floor. (i've attached a sampe made with maestro) In other fem programs i was used to construct a number of 1d elements...
  12. meolo2002

    Problem attaching XDB

    Hi to everybody! I've some problems with the xdb attachment of a model.This model is quite large, and the xdb dile is about 24mb. When i perform attachment patran stops at ***Begin attach file***. The statusi icon is green so probably patran is not working... What's the problem? Could i attend...
  13. meolo2002

    Erasing a group

    Anyone could told me how to erase a selected group?
  14. meolo2002

    Mesh seeding problems

    Hi to everybody, i've some problems with seeds.... usually they works fine, but in a solid i've tried both to do a uniform and a une way biax seeding but the values imposed are not respected. For example, i've to do an end with a spacing of 47 mm, but the seeding come with a different spacing...
  15. meolo2002

    Error in verifying mesh

    Hi to everybody I'm checking the skewness jacobian etc. in my mesh but patran shows an error message: At this time, the test for EDGE ANGLE,FACE SKEW, JACOBIAN RATIO.. (etc) are not avaible for the MSC.Nastran preferece. As I said i'm a beginner with this program.. What's the problem?
  16. meolo2002

    switching analisys from explicit non-linear to implicit linear (MD nas

    Dear colleagues, i'm beginning to use patran, so please excuse me for banality. I'm doing a model (a ship deck) made by a mapped mesh. The analisys was imposed as explicit non linear but, with introduction of some contact i would change it to implicit non-linear. It's possible to do this after...

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