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  1. harry123456

    different abaqus version behavior

    Hi, I have a problem I in expliicit, large def.contacts, hyperelastic material. I ran it in abaqus 6.4-4 and got it to work. Now the same problem, same input file same everything ran it in abaqus 6.5 and it aborts with large distortion of elements. I was wondering why that would happen and if...
  2. harry123456

    Import analyses

    Hi I want to do an improt analyses. Analyse a forming step in explicit and springback in standard. The only problem is that the model is pretty big so I created it by CAE. The import analyses cant be done if the model is an assembly of part instances which CAE does. The only thought I had to...
  3. harry123456

    sectional view

    Hi, I have a block for example with a temperature field. I want to cut the block in the middle to get a view of the temperatue inside through thickness, just like taking a section cut in the middle. I have ansys 7 and couldnt find any options for doing that. I am not sure if I missed it. Does...
  4. harry123456

    fretting

    Hi, I am doing a contact analysis of a riveted joint. From literature, most failures in joint arise from fretting fatigue due to slip of the contacting surfaces. I am not clear about this from the manual, but if anyone has any advice about this I would really appreviate it. What parameters...
  5. harry123456

    composite modeling

    Hi, I just had a question regarding modeling of composites if anyone has done that. I have to go through the documentation in detail on this but I just wanted to get some specific points to look up in the doc. I have a composite plate with a hole- 9 layers. I want to apply pressure loading on...
  6. harry123456

    contact convergence issue

    Hello, I have gone through the archives and read as much as I can on dealing with contact problems. But I am still getting some problems. I have a 3D riveting analysis with two aluminum plates. the plates have a soft adhesive material in between and the rivet joins these together. large...
  7. harry123456

    quasi static analysis results

    Hello , Thank you for the help on my posts. I apologise for a lot of questions but I am having a hard time making sure that my Explicit analysis results are making sense. I tried my analysis with sealant for two time periods 0.001 sec and 0.01 sec. Both analyses show KE small in comparison with...
  8. harry123456

    quasi-static analysis

    Hello, Thank you very much for your help regarding my previous post. Continuing on with the riveting analysis with Explicit. I want to do a quasi-static analysis. I am applying a 0.13 inches displacament to the rivet. I have gone through the manual on quasi-static analysis. I just had a couple...
  9. harry123456

    mass caling questions

    hello, My riveting analysis with hyperelastic material takes a long time to run in explicit. Going through the manuals about "mass scaling" to reduce the computation time. I just had two questions in which I am not clear from the analysis and examples manual. I have aluminum (density 0.00026...
  10. harry123456

    IMPORT questions

    Hello, I am doing a two step riveting analysis in explicit. Right now I am just doing it one step where I apply the full load (displacement). Element is CAX6M, version 6.4-1. After solving the first step I want to do an unload step to just let the model unload (similar to springback).I was going...
  11. harry123456

    adaptive meshing errors

    hello, I am doing a simulation of a hyperelastic material between two plates compressed by a rivet. I am using adaptive meshing for the hyperelastic material. But the solution aborts saying that one or more elements is highly distorted. Isnt adaptive meshing done to take care of high element...
  12. harry123456

    adhesive simulation

    Hello, I want to model an adhesive in my analysis. Does anyone have suggestions on how to do it. I think adhesives have a range of behaviors, usually does one model it as low stiffness linear elastic or is hyperelastic applicable (documentation all hyperelastic are for elastomer/rubber...
  13. harry123456

    contact convergence problem with hyperelastic material

    Hello, I am doing a riveting analysis. The analysis basically consists of two aluminum plates joined together by an aluminum rivet. I have done both 2D and 3D analysis sucessfully. Now I want to incorporate a sealant in between the two plates. For this I started out with 2D axisymmetric model...

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