The figure shows an idealized structure consisting of bars AB and BC which are connected using a hinge at B and linearly elastic springs at A and B. Rotational stiffness is denoted (R and translational stiffness is denoted (.
(a) Determine the critical load Pcr for the structure from figure part (a).
(b) Find Pcr if an elastic connection is now used to connect bar segments AB and BC from figure part (b).
(a)

(b)

Transcribed Image Text:

Hinge on Elastic support BR Elastic connection L/2 Hinge L/2 Elastic support