The stresses at a point on the down tube of a bicycle frame are x =

The stresses at a point on the down tube of a bicycle frame are σ_x = 4800 psi and π_xy = –1950 psi. It is known that one of the principal stresses equals 6375 psi in tension.

(a) Determine the stress σ_y.

(b) Determine the other principal stress and the orientation of the principal planes, then show the principal stresses on a sketch  of  a properly oriented element.

Transcribed Image Text:

DO T P oy T 4800 psi X 1950 psi