Large Deflection ON or OFF for Brittle Material

- March 23, 2022 at 5:01 am
  
  mkumar
  Subscriber
  
  Greetings,
  Large Deflection should be ON or OFF to simulate brittle material , Which is the best practice . i am using a multi linear model (got from mechanical testing of specimens) for brittle material
  i am finding big difference in results with Large Deflection ON and OFF.
  I need your advice , Thanks in Advance.
- March 24, 2022 at 1:51 pm
  
  Ashish Kumar
  Forum Moderator
  
  Please see if the following link helps.
  
  To Use Large Deflection or Not, That Is the Question - PADT (padtinc.com)
  
  Regards Ashish Khemka
- March 24, 2022 at 1:55 pm
  
  mkumar
  Subscriber
  
  Thank You
- March 25, 2022 at 12:27 pm
  
  mkumar
  Subscriber
  
  with large deflection ON, I am getting following warning messages
  1.Large deformation effects are active which may have invalidated some of your applied supports such as displacement, cylindrical, frictionless, or compression only.Refer to Troubleshooting in the Help System for more details.
  2..Moment summations are based upon the displaced mesh since large deflection is in effect (NLGEOM,ON).
  can you explain why this messages are being showed, if you want additional information about my simulation, i can tell.
- March 25, 2022 at 1:53 pm
  
  Ashish Kumar
  Forum Moderator
  
  Please see if the following link helps:
  
  Large deformation effects ÔÇö Ansys Learning Forum
  
  Regards Ashish Khemka

Viewing 4 reply threads

You must be logged in to reply to this topic.

Ansys Innovation Space

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.

Ansys Blog

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.

Trending discussions