Recent content by roy_lennon

  1. R

    How Can Photoelasticity Detect Minimal Stress in Window Glass?

    Hello Let me modify the question.. If I apply a force of 1 Newton to the glass, will the stress be detected using photoelasticity? Or do I need to apply a bigger force so it can be detected?
  2. R

    How Can Photoelasticity Detect Minimal Stress in Window Glass?

    Hi, I need to get the stress components on a window glass using photoelasticity technique. How can I now the minimum amount of stress that can be detected using this technique? Thanks!
  3. R

    Plate deflection theory vs FEA: same problem, same parameters, different results

    I've tried that, and it gave me the same result. But the thing is... can I use the whole 3D model to make the analysis? Or can I only use the bottom surface to have the 2D plate?
  4. R

    Plate deflection theory vs FEA: same problem, same parameters, different results

    Hi JolileChat, I used simply supported boundary conditions for the analytical model. I used Navier's Method and Levy's Method. In Szilard's "Theories and applications of plate analysis: classical, numerical, and engineering methods" I found the same problem solved and I read the theory and...
  5. R

    Plate deflection theory vs FEA: same problem, same parameters, different results

    Hello nvn, When I import the plate from solid works, in ALGOR I set the element type as plate, then set the thicknes to 5 mm, generate the mesh with a plate/shell mesh type, and I turn on the gravity and set the boundary conditions. I tried with the Tz fixed only, (gravity is acting in the...
  6. R

    Plate deflection theory vs FEA: same problem, same parameters, different results

    Hi, I tried something different: I draw my plate directly in ALGOR, I draw a 2D rectangle and gave all its properties and set the element type to plate and in the element definition I set the width of 5 mm and after performing the analysis I got 53 nm of max displacement. Still don't know why...
  7. R

    Plate deflection theory vs FEA: same problem, same parameters, different results

    I've run the analysis again with these settings: Element type: Plate I set the plate thickness to 0.005 m Mesh type: Plate/shell with a mesh size of 0.001 m Boundary conditions: all bottom edges with no translation Max displacement of 22.9 nm Still no idea what I'm missing... and it is...
  8. R

    Plate deflection theory vs FEA: same problem, same parameters, different results

    @John.phillip: I've tried different ways to do this: -Element type: Plate -Mesh type: plate/shell size: 0.001 m -Max displacement: 20.46 nm -Element type: Brick -Mesh type: solid, all bricks -Max disp: 29.99 nm -Element type: Brick -Mesh type: solid, all tetrahedra -Max disp...
  9. R

    Plate deflection theory vs FEA: same problem, same parameters, different results

    Hello. I'm trying to simulate a plate deflection using finite element analysis software ALGOR. Previously I made analytical calculations and I got the maximum deflection like this: (My plate is simply supported on all edges, so I used Navier's Method. Got the theory from Szilard's Theories and...
Back
Top