FEM stiffness matrix for simple frame exploiting symmetry

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SUMMARY

The discussion centers on the calculation of the FEM stiffness matrix for a simple frame, emphasizing the importance of symmetry in the analysis. The user, Johnny, seeks guidance on utilizing symmetric properties to simplify the problem, specifically regarding the division of the frame into symmetric and asymmetric components. The conversation highlights the necessity of understanding translation rules and axis orientation in finite element analysis (FEA) to effectively approach the assignment.

PREREQUISITES
  • Fundamentals of Finite Element Analysis (FEA)
  • Understanding of symmetry in structural mechanics
  • Knowledge of stiffness matrix formulation
  • Basic principles of translation and axis orientation in engineering
NEXT STEPS
  • Study the derivation of the stiffness matrix in finite element analysis
  • Learn about the application of symmetry in structural analysis
  • Explore the concepts of translation and axis transformation in mechanics
  • Review case studies on symmetric and asymmetric frame analysis
USEFUL FOR

Structural engineers, students in mechanical engineering, and anyone involved in finite element modeling and analysis will benefit from this discussion.

JohnnyR
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Hello. I need help with the following problem:
Unavngivet.jpg
Unavngivet1.jpg

I don't know where to start. I know that the frame can be split up into one symmetric part and one symmetric+asymmetric part but i forgot the theory and rules on translation and axis etc.
I hope someone can help as I have to hand in the assignment soon and my grade depends on it.

Best regards
Johnny
 
Physics news on Phys.org
Sorry about your memory loss, but the policy at PF is that you must show some effort at a solution before you can receive help.
 

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