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Load Factors for Buckling Analysis

    • November 10, 2023 at 11:15 am
      Muhammad Zeeshan
      Subscriber

      Hi there!

      Can anyone guide me with the following query & attached picture.

       

      I've developed 3 different types of I beams.

      1. Simple Beam of 200 x 80 x 5 x 2 with simply supported boundary conditions & a point load applied.
      2. Same beam with web having circular holes (100mm dia) @ 100mm c/c & both ends @50mm from first & last hole.
      3. Same beam with web having circular holes (100mm dia) @ 200mm c/c & both ends again @50mm from first & last hole.

      Now, when i'm solving it for buckling. The beam with no holes is having the least load factor while no.2 beam is having the largest load factors which i assume should be the opposite of it. Can anybody guide what's going wrong? I've kept everything constant (Boundary Conditions, Length of beam, Applied Load). Thanks.

    • November 10, 2023 at 10:41 pm
      peteroznewman
      Subscriber

      What was the default element size in each case?  Maybe the beams with holes ended up with smaller elements.

    • November 11, 2023 at 11:39 pm
      Muhammad Zeeshan
      Subscriber

      Hi peter!

      The element size was set to 50mm for all 3 conditions. 

       

    • November 12, 2023 at 12:09 pm
      peteroznewman
      Subscriber

      Remesh with 10mm element size to see if the results shift from the 50mm element size values.

    • November 12, 2023 at 4:36 pm
      Muhammad Zeeshan
      Subscriber

      Alright, Peter. I'll do. 

       

      Can I request you to check my other query as well please? 

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