December 20, 2022 at 2:53 pmIsmaël ZianeSubscriber
I am currently working on a design that involves preloading a thin PMMA plate radially (x-y axis), the plate has an optical function and will be fixed in a preloaded state (bonded), therefore looking to check the self deflection (in the z axis) of the plate under its own weight when preloaded. Obviously, because of the preloaded state, a static structural simulation not accounting for the preload wouldn't be suitable for this exercice.
I can guess that it would mean doing a multi-step analysis somehow, but at the moment my problem resides in the fact that I would need different boundary conditions for each of the steps which questions the use of such an analysis... What is the best way to model this, a transient structural analysis? Importing the part on which the plate is going to get fixed to?
December 21, 2022 at 2:55 ampeteroznewmanSubscriber
Please show the frame which holds the plate in the preloaded state.
Please explain how the plate is loaded when it is bonded to the frame.
Please show how the frame is connected to the optical bench.
You would use a multi-step Static Structural model where step 1 is applying the load to deform the plate to a shape, step 2 is bonding the plate to the frame, step 3 is removing the load that deformed the plate, step 4 is to change the direction of gravity or mount the frame to the optical bench.
If there is an optical prescription for the surface of the plate, then the deviation of the surface from the prescription can be measured at each step.
December 22, 2022 at 10:45 am
- You must be logged in to reply to this topic.
Earth Rescue – An Ansys Online Series
The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.
Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.
- Saving & sharing of Working project files in .wbpz format
- An Unknown error occurred during solution. Check the Solver Output…..
- Understanding Force Convergence Solution Output
- Solver Pivot Warning in Beam Element Model
- Colors and Mesh Display
- How to calculate the residual stress on a coating by Vickers indentation?
- whether have the difference between using contact and target bodies
- What is the difference between bonded contact region and fixed joint
- The solver engine was unable to converge on a solution for the nonlinear problem as constrained.
- User manual
© 2023 Copyright ANSYS, Inc. All rights reserved.