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Understanding Force Reaction Probe

    • leroy.benjamin
      Subscriber

      Dear Ansys Community,

      I am simulating the force acting on my experimental setup, please see below Image of Setup.

      I am also interested in finding the force acting on different structures of my setup. When I use the Force reaction tool on fixed supports I get results that make sense please see Figure2. 

      However when I apply the tool to contact regions, to find out forces I get quite high numbers. I apply a force of 52kN but the force at contact regions are 100kN. How is that? How do I interpret these results? 

      Can you give me a link to a tutorial on how to use this Force reaction tool? is there a tool to find out the forces acting on a body within the setup? 

       

    • Erik Kostson
      Ansys Employee

      Hi

      I think you get the idea on how to use it - see our courses perhaps there are some examples on contact reactions there.

      Also perhaps search the internet to see if you find some relevant material.

      https://simutechgroup.com/bonded-contact-between-shell-faces/

      All the best

      Erik

    • leroy.benjamin
      Subscriber

      Hi,

      Can you please give me a link to a course? I was unable to find a suitable one. 

      Thanks. 

    • SaiD
      Ansys Employee

      Hello,

      1. In this video at time 16:30, you should see a demo of how to obtain Contact Force Reaction: Understanding Basics of Contact - Lesson 2 - ANSYS Innovation Courses
      2. With regards to why you are getting contact reaction forces much higher than the applied external force: to interpret these forces, you would need to draw a free body diagram for each individual part (since these contact forces are forces that one part exerts on the other and vice-versa). The forces on each individual part should balance out. Another thing you need to keep in mind while drawing these free body diagrams is that the applied remote force also generates a moment. Watch this video from around time 16:30 to understand how the free body diagram needs to be considered for each individual part: Utilizing Remote Points Properly - Lesson 4 - ANSYS Innovation Courses

      Hope this helps.

    • leroy.benjamin
      Subscriber

      Thank you!!

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