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  • Users: grnlan03
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  1. grnlan03

    Naming a partitioned cell

    I was wondering if there was a way to assign a cell a name much like what can be done with a surface. I’m trying to assign a body heat flux to a cell that I have partitioned and cannot physically see in CAE. If you cannot assign a cell a name is there away to deactivate cells on the outer...
  2. grnlan03

    Thermal-Mechanical Equations

    I have been looking through the documentation for the theory i.e. the general PDE's, used to solve coupled thermal-mechanical problems. Thus far I have had no luck in locating this information and have only found information on coupled thermal-electrical analysis. Does anyone know if these...
  3. grnlan03

    Finding Radial Stress

    If I have a cylinder shaped part, is ther a way of making ABAQUS show circumferential and radial stresses? Do i have to introduce a cylindrical coordintate system before running the job? Thanks
  4. grnlan03

    Convergence Issues with a contact constraint

    I’m having trouble with my model not converging. It is a thermal-mechanical analysis with a contact condition in place between the two plate along with a heat flux. I know the convergence issue is tied to the contact constraint because it will run when it is suppressed. I have attached the .cae...
  5. grnlan03

    Meshing Issues using Tet elements

    I have been having trouble getting two annular parts to mesh. I am trying to produce a mesh using tet- elements which will be used in a thermal-mechanical analysis. I can mesh the model when the seed size is large but when I lower it to around 0.005 the model will not mesh and I get an error...
  6. grnlan03

    Interaction Contact Convergence Issues

    I have attached a .cae with the model I have been trying to run. It is a fully coupled thermal mechanical analysis of two aluminum plates that are weld about their edges. There is a uniform temperature gradient across the thickness of both plates. The central area of the plates has an...
  7. grnlan03

    Contact Convergence Issue

    I have been having trouble with a thermal-stress model that will not converge. I believe my problem is somewhere in the contact interaction I have applied to the model called “internal contact.” The model will converge with a low density mesh with the contact interaction on but it will not...
  8. grnlan03

    Convergance Issues in Thermal Stress Analysis

    I am having some trouble getting my fully coupled thermal stress model to converge with higher density meshes. I have lowered the increment size in the past to get it converge but now I get this error related to heat flux. There is zero HEAT FLUX everywhere in the model based on the default...
  9. grnlan03

    Simulating a Weld

    I have two aluminum plates that are the same dimensions which are laid directly on top of each other. I am trying to figure out a way to simulate a weld around the edges of the plates. I need to take the nodes located on the edges that are in connect between the plates and tie them together. I...
  10. grnlan03

    Parallelization in Parametric Studies

    I am running a parametric study and I'm trying to figure out how I can run parallelization. Currently the study is only running on one processor core and it would be nice to run on multiple ones. I don't know if it should go in the .inp file or the .psf file. Any help would be appreciated. Thanks
  11. grnlan03

    Parametric Study Scripting

    I am having a difficult time writing a python script file that will run a parametric study. The examples in the documentation are not wanting to run either. Does anyone know of a place were I can see some examples of script or if there are any books out there that will be of assistant? Thanks
  12. grnlan03

    Parametric Study

    I am attempting to run a parametric study in abaqus. From what I have read you can do this several ways. One, is to write a python script file with a parametric study built into it. I have seen this in the documentation but there are not many examples to work on. Second is to write a program in...
  13. grnlan03

    Thermal-Stress Analysis Procedure

    I have been attempting to do a sequentially coupled thermal-stress analysis and I keep running into problems with the thermal data transferring from the thermal analysis to the mechanical analysis. This is procedure I am doing right now. 1. Run heat transfer analysis 2. Copy model and delete...
  14. grnlan03

    Sequentially coupled thermal-stress analysis

    I am trying to run sequentially coupled thermal stress analysis. I run the uncoupled heat transfer analysis first. Then I copy the file and use the same mesh in a mechanical analysis where I apply predefined temperature field, delete the thermal step from before and create a new mechanical step...
  15. grnlan03

    Fully Coupled Thermal-Stress Converagnce Problems

    I am attempting to run a fully coupled thermal-stress analysis on two aluminum plates. I am using hex elements (C3D8T) with about 3000 elements. I can run the model when the mesh is very course but when I try to run the model using a fine mesh to the model will not converge. I do not know why...

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