Anyone know how to start the user interface from the output window or even open it externally. Only the output window opens when I run the ANSYS exe file.
I was running it from the start menu and I have tried run as admin and have full admin rights on the computer. I now have went into he ANSYSED folder and found an ANSYS executable file however, kept getting the error ANSYS90_DIR not set, therefore, I created an environment variable to the...
I clicked on "ANSYS" from the program files, confirmed the terms and agreements now I get an error every time saying "Unabl to open file file.lock for WRITE. Check directory and file permissions.
Cant find a file.lock anywhere and dont know how to fix this.
I am trying to simulate the deformation of a rubber seal. The seal is initially stretched over a groove, the initial deformation needs to be analysed. Then the outer diameter is compressed by a dynamic clamp, this deformation also needs to be analysed. I would like to do this all as a 2D...
What are the effects of pressure in compression molding, is it just there to stop the molding die top from lifting due to thermal expansion of the rubber in the tool or does it have any other advantages?
Are there any calculations that can be made to determine which tool or component requires...
Thank you chicopee, I really appreciate the time you have spent helping me with this.
Thank you for confirming boyze, your simulation gave me good results when tested against real cases. Could you please explain to me how I would obtain the cure temperature coefficient from the MDR results. Thanks.
Thank you for your replies.
We are currently doing this manually with a dremel. The rods are not straight they are diameters, essentially a hoop, when we debur these after cutting we have to stretch the split apart and clean up any rough edges which takes time and opens the split even more...
We are currently looking into methods of cutting plastic rods with diameters being a typical maximum of 5mm, examples of some plastics are PEEK and PTFE. Could a hot wire cutter be used for this to get an accurate cut?
If so, can this be done with a fairly thin wire diameter which would result...
Hi Boyze,
Forget about my last questions, I will be need to read up further to understand these as I have just realized how large this topic really is and it could not possibly be explained in a single post.
For my purposes the simulation that you have created will do the job. Could you...
I have looked over this a few times now and have realized that this theoretical analysis requires either a Calorimeter test result to determine change in enthalpy or results obtained from MDR in Scanning Mode. I have neither of these therefore, could anyone please suggest a method for cure...
I am trying to understand how a rubber sample state of cure changes with time. Up to now I have created a temperature plot in which the temperature is known at each point within the rubber component however, I am having difficulty understanding how it cures.
The information I have currently is...
Thank you so much, this is very helpful!
Could you please explain to me what the Cure Temperature Coefficient is and how do I find it based on MDR test results?
Also, could you please guide me on what I should follow to understand what calculations you used for calculating the state of cure...
Wow this is amazing, Thank You!
Could you please tell me how you calculated how the rubber is curing? The method I had used is I ran a heat transfer simulation on the MDR testing geometry and once the temperature of the geometry was the same everywhere I subtracted that time from the T90 shown...
Thank you for the replies, I did some more research and found that modifying the energy equation so that it applies to 1D transient flow I get:
αt/b^2=1.2
I plugged the values in and solved for t and found that it comes to 15 seconds which was close to my simulation results as when I...
Thank you very much for your help it is greatly appreciated. I thought that this would be a simple equation which I could directly plug the values into and get an average time however this goes way beyond my knowledge within this subject. I therefore, used a simple heat transfer simulation to...
Thank you for your help, this is not homework, it is for part of a work related simulation that has been conducted. I will look into this book when I get back, do you have any more information that may aid me with this? Thanks.
I have a rubber sample here, basically it is a slice with a diameter of 45mm and a depth of 3mm. If this sample was at 25 degrees Celsius and I applied 180 degrees temperature all around it (top, bottom faces and outside diameter) how long would it take for the centre point (last point to get...
Hello,
I am trying to simulate a 2D test case and was wondering if I could import 2D geometry from a 2D CAD software, when I looked inside of the import menu on Patran I only saw 3D import methods such as STEP, STL, Pro-Engineer, etc... Is this even possible or will I have to manually create...
