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Файл:FEM_Lecture_Notes.pdf
Lecture Notes: Introduction to Finite Element Method |
Chapter 5. Plate and Shell Elements |
Test Problem:
z 
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C |
y |
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L/t = 10, ν = 0.3 |
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ANSYS 4-node quadrilateral plate element.
ANSYS Result for wc
Mesh |
wc (× PL2/D) |
2×2 |
0.00593 |
4×4 |
0.00598 |
8×8 |
0.00574 |
16×16 |
0.00565 |
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Exact Solution |
0.00560 |
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Question:Converges from “above”? Contradiction to what we learnt about the nature of the FEA solution?
Reason: This is an incompatible element ( See comments on p. 177).
© 1997-2002 Yijun Liu, University of Cincinnati |
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