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Hi For many of you this question might be trivial...but... Can anyone simple explain me why solid elements (C3D8, C3d10, ect) don't have rotational degree of freedom? Regards

Hi! I want to open ODB file which is created in ABAQUS 6.8 EF in ABAQUS 6.7 EF or 6.8. Is there any possibility to convert ODB file to previous version of ABAQUS? waiting for your reply Regards

Hello! I've got a question to vibration experts in ABAQUS. My problem is to get response spectrum characteristic in ABAQUS. I suppose that first step will be calculation of natural frequencies of a model. I've got some random acceleration characteristic for each degree of freedom (XYZ). I'll...

Hi ! Try to export mesh to VMRL format. Then you can import it to CAD system. Regards

Hi! Define pressure using amplitude. Then define aplitude - time dependency in amplitude definition. Regards

Hi! Yes, create partition which will contain interested area of contact surface. Regards

Hi ! Try UEXPAN - user subrutine Regards

Hi! Try to use enchanced hourglass control in mesh control. Avoid triangle elements in cylinder discretization. In contact properties use hard contact. Use direct contact specyfication (in hard contact properties), unless you have convergency problems, then use penalty method. In contact...

Hi! To apply moment create reference point on cylinder center. Then add coupling constraint between cylinder top-face and created RP. Then apply moment to RP. Everything should work.

Hi! Maybe you can attached cae file. I've made such type of analysis. You should get such stress distribution: http://www.youtube.com/watch?v=OfVRTKDoQHg There are 2 main theories about "hard contact" 1. Hertz theory 2. Bielajew's theory In a nutshell...First says that maximum stress value...

You need to plot deformed shape for selected mode value. To select mode value go to Results--> step frame. Then press "Plot deformed shape" icon. Regards

Hi! I want to perform modal analysis of a tuning fork :-) Does anyone of you have some technical drawings (with all dimensions) of that object? Regards

hi! which version of abaqus and fortran do you have?

williwang I know that neglecting material transformation is not good idea but It is nessecary in this case. TGS4 my main question is about convection parameter. How to calculate it during quenching process (it depends on temperature value)?

Hi All Does anlyone has expierence in thermal-stress analysis. Goal of my analysis is to calculate stress distribution after quenching process. Transformation kinetics of material will be neglected in analysis. Regards and thanks for help.

If Abaqus/Standard---> houglass:enchanced Regards

You can check total volume (mass) of a model (or instances) using infrmation module (I'm not sure of name of that command) in mesh module. Sience abaqus 6.7 EF you have possibility to check model parameters by checking mesh.

Abaqus is FEM package based on Euler-Lagrange equation. Fluid flow based on Navier Stokes is typical for CFD software (FLUENT etc) Regards

As Guru mentioned you must define damage evolution. Try also define material using Johnson-Cook model. Regards and good luck

Hmmm....I did such type of analysis some time ago. What can I say, it won't be easy :-D As I remember in contact parameters you must define general contatt. Set contact properties as default. Can you attach input? This may be helpful. Try to set also hourglass at "enchanced" or turn off reduced...