A simply supported beam of length L is subjected to a uniformly distributed load 'w' over half of its span starting from one support. What is the magnitude of the slope at the mid-span of the beam?

Mohr's circle reduces to a point when an element is subjected to:

A steel column pinned at both ends has an Euler buckling load of 250 kN. If the column is restrained against lateral movement at its mid-height, its new buckling load will be:

What is the angle between the principal strain axis and the maximum shear strain axis in 2D strain analysis?