I have got strain energy = 0 so far. Since both foundation pins are fixed and do not mov. Therefore potential energy will be a negative value but am unsure about this... In all the examples and tutorials we had. Potential energy is a positive value.
Q: A structure is made from identical, axially compressible robs connected to a rigid foundation. The rods cannot buckle. In the unloaded configuration the angle between the rods and the horizontal is (alpha); then angle becomes (1-Beta)*alpha when p =/= 0. Find the relationship P(Beta)...