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Ok, thank you. well, yes the part was created as a rigid analytical 3d part. Sorry I didn't mention it. Then I created an analytical surface by selecting the surface I wanted of the rigid part. then of course made a reference point. from the replies I understood it as tying the analytical...

Thank you all for being so helpful.

To amubashar, I appreciate your comment and having studied biomedical sciences I already know this very well. It is well documented that bone is inhomogeneous and hence its true modelling is very difficult. But i believe I have never mentioned in this forum that I was modelling true bone as it...

well in my opinion it isn't "complicated", and I am just having problems because I'm a newbie with Abaqus.

Well you are not making it any easier now. I am simply applying my case scenario, checking if its do-able, if it isn't then I'll make further assumptions and simplifications. I'm sorry but what exactly is complicated that I am doing? lol

the following error comment displays: Analysis Input File Processor completed successfully. Error in job 1650: The rigid bodies with the reference nodes contained in node set ErrNodeRefNodeNoRot1Axis have atleast one axis about which the rotary inertia magnitude is zero, and the rigid bodies...

sorry i meant to have said "i couldn't tie..." Cheers

i could tie the surface with the reference point!! i went to constraints, tie, selected the analytical surface as the master slave but then i couldn't select the reference node!! how is this done (tying of rigid body to reference point)????

Attached is a video of my model as it is impacted by a rigid part. This is a bone impacted by an analytical rigid part. There are three problems: the analytical rigid part in the part module appears as a rectangle (which is how it is desired) however in the simulation (visualization module) it...

I am simulating an impact of a bone versus a rigid surface (bumper of a car). I have given the rigid surface a velocity predefined field of 1100 mm/s in the direction wanted. I have also given it a boundary condition so that it would only move in the direction prescribed. However it is not...

I would like to express first of all how thankful I am for these replies. Rob, yes I had applied a constraint to the rigid body but i am not sure actually. i went to constraint--rigid body--- analytical surface....but there were a few more options (please let me know if you would like me to...

No i haven't. the manual didn't say. Thank you! anything else I should do the rigid body before i submit a job?

Thank you!! I have just built a part (analytical rigid). I gave it a reference point but when I run a job it says it is missing a reference point? what is the problem?

THANK YOU!!!!!!!!!!!!!!!!!!!!! i did it and it worked!!! I owe you guys everything! I can't get this type of help from my own uni!! So thank you

which one is best to use to model the bumper of a car. I have read the manual but I don't understand the difference between the two

thread799-207818 According to this thread, this might be a reason why I get the error message saying I do not have write permission or sufficient storage. How do you change the directory of Abaqus? I'm a newbie and I don't know how to do this.

Whenever I run a job in Abaqus, i get a message that says that I should check the write permission or I might have insuffienct storage. I have run an analysis once before but any subsequent ones gave that message! What could this be?