A hollow, square column has a length l and material E , as shown in the row(s) a

Question

A hollow, square column has a length l and material E, as shown in the row(s) assigned in Table P4-3. Its cross-sectional dimensions are 4 mm ouside and 3 mm inside. Use Sy=150 MPa for aluminum and 300 MPa for steel. Determine if it is a Johnson or an Euler column and find the critical load.

a) If its boundary condistions are pinned-pinned.

b) If its coundary conditions are fixed-pinned.

c) If its boundary conditions are fixed-fixed.

d) If its boundary conditions are fixed-free.

Table P4-3 Data for Problems 4-33 - 4-36, 4-49 - 4-52, and 4-89 - 4.92 Incl. Use only data that are relevant to the particular problem. Lengths in mm, forces in N.

Explanation / Answer

c) If its boundary conditions are fixed-fixed.

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