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Showing results for tags 'optistuct'.
Found 5 results
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Hi all, I have a question about using contact ties to attached weld elements to a structure. In a nutshell, I've been asked to bring 2 models together with a dissimilar mesh and weld them. In the attached image on the left is a typical merged node to node approach with no contact - this would be our traditional approach. The middle contour plot is the same model but the weld is detached from the structure and is connected via a tied contact. The right contour plot is with a dissimilar mesh (similar to what I have been tasked with) and using the same contact tie set up as the middle contour. As you can see there is some variation between all three contour plots. Ideally I want to be able to use the approach in the right plot as this would cut out significant amounts of remeshing. However I do need to justify this approach. 1. Why is there such a difference between plot results? 2. Has this approach been used by others and if so why? 3. Is the contact tie approach acceptable for this application? 4. Are there any published references which can be used to support this approach? Any help is always appreciated, I don't always get a notification when people reply so apologies if there is a delay. Kindest regards Andy
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Hi, I would simulate a hertian contact about two cylinders. I tried to create a smulation but I had some problem about the results and convergence. In particular I have problems about the contact type (SLIDE, STICK and FREEZE) and track. I attach the simulation that I created. Thanks for the advice you will give me. cylinders_contact.hm cylinders_contact.mvw
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Messages for the job: *** ERROR # 5408 *** Aborting analysis because no structural modes have been computed in the modal dynamic subcase 1. *** PROGRAM STOPPED: FATAL ERROR(s) ENCOUNTERED. I am not understanding why this error is comming. Please help me. -
Dear All, I want to ask about RBE2 application, please see my picture below. I have a simple plate, and I want to give constraint on 2 holes on top, and forces (160kN on both hole or 80kN each hole) on 2 holes on bottom Why my simulation result (stress & deformation) totally different?, because in my opinion, case on the problem 1 and problem 2 are same.... Am I miss something? Best regards, Iron_Man
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Is there a way to optimize the thickness of a bracket (solid 3D model) in Optistruct?
