Stability of structures
Problem S1
For the beam depicted below, the student must evaluate the critical load and the associated critical mode by adopting two cubic finite elements; discuss the results as a function of the b parameter. Pb EI, 2 EI,
Problem S2
Determine the critical load and critical mode of the following 2 d.o.f. system as a function of a ratio between stiffness of extensional (k) and rotational springs (K); discuss the results.
K PL/2L Lk
Problem S3
The column with section in the figure has flexural-torsional clamped conditions at each edge. Evaluate its critical load as a function of the length for the flange dimensions indicated below. Compare the elastic results with the maximum compressive stress σ.
- Data: B = 400
- H = 200
- tf = 20
- tw = 20
- E = 2.0E+5
- G = 8.0E+4
- σ0 = 400 (dim N, mm)
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Takehome Stability of structures
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Stability 21.06.18
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Stability of Structures
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Stability of Structures - Appunti