A cura di Ilaria Bertolo e Edoardo Ridolfo
listato_rollbar_con_spiegazione.wxm
Deformed and undeformed shapes are plotted, plus the bending moment.
An equal imposed deflection is imposed at the top-left corner, stiffness has been evaluated based on the associated reaction force.
The three frame structures stiffness is reported below:
- $b/a=1/5$: $k=7.29k_\mathrm{ref}$
- $b/a=1/1$: $k=5.60k_\mathrm{ref}$
- $b/a=5/1$: $k=3.38k_\mathrm{ref}$
where $k_\mathrm{ref}$ is the stiffness of the single upright member, taken as a reference.
Beam cross section is uniform along the frame, and very slender. (MSC.Marc model)