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  • Users: Dave442
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  1. Dave442

    Correlation and Significance

    Hi all, I have not studied statistics in a long time and could use some advice. I have carried out six numerical analyses to investigate the deformation of six similar devices. Now I wish to determine whether there is a relationship between the geometrical properties of the device, such as its...
  2. Dave442

    Equation Editor in Microsoft Word

    Hi all, Sorry if this seems trivial but I cant for the life of me figure this out! I wish to write an equation in Word 2007 using the equation editor. As the equation features integral signs in both the numerator and the denominator, however, the size of the integral signs is reduced quite...
  3. Dave442

    Contact Issue

    Hi all, I have performed an ABAQUS/Explicit analysis of two parts that come into contact. The first part (Part A) deforms in a non-uniform manner and comes in contact with the second part (Part B) to different degrees at different locations. I would like to quantify the % surface area of Part...
  4. Dave442

    Abaqus/Viewer

    Hi all, I have got results from a structural analysis of an assembly and I was wondering if it is possible to apply translucency to individual parts in Abaqus/Viewer? Similarly, I was wondering if it is possible to show the mesh for individual parts as opposed to the entire assembly? I have...
  5. Dave442

    Energy balance in a quasi-static explicit analysis

    Hi all, I would like to ask some advice on interpreting whether or not my quasi-static solution is acceptable. In the manual it says: "As a general rule the kinetic energy of the deforming material should not exceed a small fraction (typically 5% to 10%) of its internal energy throughout most...
  6. Dave442

    SAT Processor Error

    Hi all, I have carried out some finite element modelling in Abaqus and have used a plug-in to generate a .SAT file from my deformed mesh. I would like to import this .SAT file into Solidworks but encounter the following error: Error: Part creation may fail as the bounding box is too small...
  7. Dave442

    Generate 3D part from FEA mesh

    Dear all, I am looking for some advice. I have carried out a structural analysis in ABAQUS and wish to perform a computational flud dynamics analysis using the deformed geometry. My problem is that I am working with an orphan mesh and, as such, there is no geometry. I was wondering if this is a...
  8. Dave442

    Quasi-Static Analysis - Kinetic Energy

    Hi all, I am running a large quasi-static structural analysis in Abaqus Explicit. In this analysis a relatively stiff part (elastic-plastic) comes into contact with a relatively flexible part (hyperelastic). I am using the general contact algorithm with the default frictionless properties. The...
  9. Dave442

    Single-Element Uniaxial Test

    Hi all, I have created a hyperelastic material in ABAQUS/Explicit using experimental data from a uniaxial tension test. When I use the "Evaluate Material" option in ABAQUS/CAE the material is found to be stable over the strain range and the predicted uniaxial nominal stress vs strain curve is...
  10. Dave442

    Stress-Strain Conversion (Hyperelasticity)

    Hi all, I wish to perform an analysis on a hyperelastic material. Reading the manual I discovered that nominal (engineering) stress and strain data is required for defining a hyperelastic material model. The experimental data I have is presented as Cauchy stress vs. stretch. From my...
  11. Dave442

    Maximising Output Question

    Hi all, I have been given a HP workstation which has a quad-core Xeon 3GHz CPU, 16GBs of ram and a 64bit windows architecture to carry out some research using ABAQUS/Explicit v6.9. I currently have access to 10 Abaqus/Explicit tokens and am trying to determine how to maximise my output on this...
  12. Dave442

    *NSET and *ELSET question

    Hi all, When using the *NSET and *ELSET commands to create node / element sets, is it possible to read in node / element numbers from an external text file? Similar to the *NODE and *ELEMENT commands with which you can use the parameter INPUT=? I have written an input file for a simple...
  13. Dave442

    Hyperelastic Material Calibration

    Hi all, I am trying to figure out how to define a nearly incompressible hyperelastic material in ANSYS 12.1 and could use some advice. I have uniaxial experimental data which I can use to obtain coefficients for different strain energy functions. I would like to define the material as nearly...
  14. Dave442

    Correctly Modelling a Composite Cylinder

    Hi all, I need to model a thick cylinder which is seperated into three individual layers each of which has different material properties. We are assuming that the layers are bonded and that each of the materials is isotropic...
  15. Dave442

    Issue with contact elements

    Hi all, I am trying to model the expansion of a stent, a small metallic medical device which is expanded within an occluded blood vessel to improve blood flow through the vessel. I have created a finite element model of the stent geometry (SOLID185) and have simulated its expansion using a...
  16. Dave442

    Issue with CNVTOL command

    Hi all, I am trying to figure out the CNVTOL command for defining convergence criteria and am having some strange results. I have a solution that solves ok with default solution settings (SOLCONTROL,ON). The solution features nonlinear materials and contact so according to the help file the...
  17. Dave442

    Convergence Norm INF,L1 and L2

    Hi all, I was wondering if somebody could briefly explain the difference between the three types of Convergence norms employed in ANSYS. As far as I can tell from reading the CNVTOL documentation: INF norm causes the solution to iterate until the magnitude of the out-of-balance load vector...
  18. Dave442

    Contact Question

    Hi all? Recently I noticed upon plotting the material numbers for an FE model that, depending on the MATERIAL ID that I specify under the FRICTION tab in the contact wizard, either my contact or target elements will have a different material number than their underlying elements. For example...
  19. Dave442

    Batch file for multiple runs [APDL]

    thread569-238844 Hi all! I am trying to set up a batch file that will allow me to run a series of analyses overnight - similar to the problem posted in the thread referenced above. As with the original post I am unfamiliar with DOS and I cant quite follow the directions in the Help file for...
  20. Dave442

    Queue up simulations (ANSYS APDL)

    Hi all, I was wondering if it is possible to queue up simulations in ANSYS APDL 12.1. I have read that simulations can be queued from the product launcher on UNIX systems but I am running on Windows. I was wondering if I could write a batch file to do this but am thinking that there may be an...

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