I'm fairly new to solidworks, had a query regarding simulation.  the simulation for my assembly shows very low von mises stresses range  2.6e-8 to 7.2e1 N/mm2. (see pic) Although material assigned  has high yield stress of about 300 N/mm2. i am probably missing something here. The stresses after running the simulation are nowhere near the yield or normal stresses. Would be grateful if you guys could help me out here

load on each of the beam is 50KN

connection - global contact

fixtures. - as shown in attachment