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  1. marmilew

    Wave Loads ANSYS APDL

    Hello I use ocean loading on vertical pile clamped at the bottom. I use PIPE289 element with wave loading. Resultan Morrison Force and Resultant Bending moment in bottom are the same a hand calculations. However, for pressure distribution along pile I get a triangular distrribution with base at...
  2. marmilew

    Beam displacement

    Hello Is there moderately easy way for hand-calcuations of the beam dispacement after plasticity occurs? My model is beam clamped on left and simply supported on right side. Force P in the middle of beam and plastic moment is Mpl (plastic resistance). I use elastic perfectly plastic material...
  3. marmilew

    Hartog Strength of materials

    Hello all Does anyone know where i can find Hardog's book "Strength of Materials'? I heard a lot of good feedback about it. And I am particularly interested in chapter 27 "plastic deformations". I analyse bending of beams beyond elastic limit and looking for some methods to check results from...
  4. marmilew

    [APDL] Bending moment diagram

    Hello to all I am having troubles with ploting digrams of bending moments in Ansys APDL I used this command for beam 188 elements: etable,moz1,smisc,3 etable,moz2,smisc,16 plls,moz1,moz2,-1,1 It works fine, however, later I need to change orientation of beam's cross-section. I use command...
  5. marmilew

    WB to APDL

    Hello I tried to transfer results from static analysis in WB to APDL I transfered gemetry and model without problems. Then when i transferd Setup i got this error message: "Update failed for the Analysis component in Mechanical APDL. The solver failed with a non-zero exit code of : 1" I can't...
  6. marmilew

    Beam vs Solid - Plastcity

    I have found out in HELP that there is no way that WB will show correct values of stress in beam elements in the elastic-plastic material. Tool used for display of stress value in beams (Beam tool>combined stress or beam tool>direct stress) is valid only in elastic range. It looks like for...
  7. marmilew

    [Workbench] Nonlinear buckling

    Thank you
  8. marmilew

    [Workbench] Nonlinear buckling

    Hello, thank you fro response. How can i check plastic strains or distortion in beam element. It works in shell or solids, but not in beams.
  9. marmilew

    [Workbench] Nonlinear buckling

    Hi all I analyse buckling stability of a column in a static, nonlinear analysis. Bottom support allows only rotations (except torsional) and top one allows rotations and vertical displacement. To get initial imperfection i apply lateral pressure in the 1st step. In the 2nd step lateral pressure...
  10. marmilew

    [Workbenhc] Failure in Static Analysis

    Hello all! I will simulate complex beam-like structure to obtain ultimate strengh. The load will be increasing incrementally until structure collapse.I will model of course non-linear material for this. My question is, what type of analysis to model failure of elements? Some beams will yield...
  11. marmilew

    Beam vs Solid - Plastcity

    I think that the only way is to input an APDL command into WB. I tried but I am totally new to APDL. This is command in WB: ! Commands inserted into this file will be executed just after material definitions in /PREP7. ! The material number for this body is equal to the parameter "matid"...
  12. marmilew

    Beam vs Solid - Plastcity

    Thank you rickfischer51 and petb for your answers. I am working in a Workbench. I use default hex elements for solid and default beam elements for beam. However I 'midside nodes kept' option is on, so they are higher order elements. I have checked boundary condition and section properties and...
  13. marmilew

    Beam vs Solid - Plastcity

    Hello all I model a simply supported beam with uniform pressure and rectangular cross-section. I use bilinear isotropic hardening model (Et=0) There are two cases: 1st case: to achieve elastic limit (load q=8*sigma_y*(bh^2/6)/L^2) 2nd case: plastic hinge, q=8*simga_y*(bh^2/4)/L^2 For solid...
  14. marmilew

    Geometric Nonlinearities

    I don't know about Ansys APDL but in Ansys Workbench you activate nonlinear calculations by "Large deflection"
  15. marmilew

    Plastic Hinge Workbench (VMMECH029)

    thread569-306821 Referring to the Thread (above) i want to ask about examples from verification manual VMMECH029 For 30000 lbf-in ansys returns exact solution, but for bigger moment it cannot converge. In the previous Thread it was recommended to set: Element Control in Geometry - Manual...
  16. marmilew

    ANSYS WB - pushover analysis

    Hi everone For my Thesis I am suppose to conduct a pushover analysis of a Jacket offshore structure. I've done a bit of background reading about a pushover but I still dont know how to do it (to start) for a simple 2D strucuture in Workbench. As far as I know there is no predefined 'pushover'...

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