8-1. A vertical
force F acting on a bar is shown below. Given that the length of the bar
, and the spring has a stiffness of 
, determine the distribution of the
critical buckling load of the bar. (Ans. 
)
8-1. A vertical
force F acting on a bar is shown below. Given that the length of the bar
, and the spring has a stiffness of , determine the distribution of the
critical buckling load of the bar. (Ans. )