For a shell set of a connection rod the bolted connection has to be checked. The rod is loaded with a pulsating load. The minimum load under operation is FBu,total = 10kN, the maximum load FBo,total = 30kN. The load is evenly distributed for the screws. max. operation load min. operation load diameter core cross section diameter loaded cross section resilience of the plates Settling (in total) assembly factor FBo,total FBu,total d3 ds Ja.per = 0.75 + 8p fz 180 Ola 060 F TI [kN] [kN] [mm] [mm] [mm/N] [um] [-] 30 60 a) Determine the resilience for the screw M8 x 60 8.8. Consider the given dimensions. b) For the given loads determine the required pretension load Fv, if a residual clamping load of FKR = 2KN has to be ensured. 30 10 c) Determine the minimum pretension load for assembly Fv.ass,min and the maximum assembly load Fv,ass,max. Check, if the calculated maximum load is permitted (ignore the torque loads resulting from friction in the thread). +52) [N/mm], d in [mm] 6.466 6.827 2 x 10-6 20 1.25 d) Check, if the screw is fatigue resistant. Calculate the permitted stress with the given equation: