May 23, 2023 at 1:02 pmJanneSubscriber
I have modeled a plate in Mechanical APDL using SHELL181 element and sectype,gens, i.e., preintegrated general shell section. I have input all the necessary section information (SSPA,SSPB, SSPD,SSPE) and the simulation runs nicely and solves. I can also observe and plot for example the translations.
However, it is said in Ansys manual for preintegrated shells: "Shell stresses are not available for output; however, the stress resultants are available as ETABLE quantities.". Now, it makes sense when I try to countor plot nodal stress results that I get "The requested S data is not available. The PLNSOL command is ignored" warning. But what I do not understand, I get the same warning when I try to use element table (ETABLE).
In my code, I have put outres,all,all before solve command.
Does anyone have any help how can I obtain the stresses in preintegrated general shell sections?
May 24, 2023 at 11:23 amAshish KhemkaAnsys Employee
Please see if the following link helps:
ANSYS APDL error "The Requested S data is not available. The PLNSOL command is ignored" solution when drawing cloud diagram
May 25, 2023 at 6:23 amJanneSubscriber
Thanks for the suggestion. That does not help. The reason is that preintegrated shell element does not have a thickness defined and therefore stresses cannot be calculated. They must be manually calculated from the stress resultants N11, N22, N12, M11, M22, M12, Q13, and Q23 that are in SHELL181 output data. Those can be recovered using ETABLE or ESOL and Item SMISC sequence number 1 through 8. I will edit this once I have done this succesfully so that someone with similar problem can learn from this.
- You must be logged in to reply to this topic.
Boost Ansys Fluent Simulations with AWS
Computational Fluid Dynamics (CFD) helps engineers design products in which the flow of fluid components is a significant challenge. These different use cases often require large complex models to solve on a traditional workstation. Click here to join this event to learn how to leverage Ansys Fluids on the cloud, thanks to Ansys Gateway powered by AWS.
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.
- Solver Pivot Warning in Beam Element Model
- Saving & sharing of Working project files in .wbpz format
- Understanding Force Convergence Solution Output
- An Unknown error occurred during solution. Check the Solver Output…..
- What is the difference between bonded contact region and fixed joint
- User manual
- The solver engine was unable to converge on a solution for the nonlinear problem as constrained.
- whether have the difference between using contact and target bodies
- material damping and modal analysis
- Colors and Mesh Display
© 2023 Copyright ANSYS, Inc. All rights reserved.