Answer to Question #255628 in Mechanical Engineering for jil

Question

A column with one end pinned and another end fixed is made of carbon steel AISI 1020. The column is hollow round bar with internal radius of 20.0 mm, thickness of 3.0 mm and length of 2000.0 mm. Determine a) whether the columns will buckle inelasticity or elastically. (4 marks) b) the buckling stress if the column is subjected with 80N of axial force (8 marks) c) the critical buckling load for the column. (8 marks)

Answer 1

The breaking strength for carbon steel is 841MPa.

$\textsf{Area of column }= πr² = 22/7 × (20×10^{-3})^2= 0.00126m²$

Force needed = Pressure × Area = $841000000× 0.00126 \approx1060\ kN$

Anything below is not enough$.$