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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
