Design documents state that a total of six M10 x 1.5, class 5.8bolt and nut pairs fasten a 15 mm thick steel cap to a 15 mm thicksteel flange. Safety requirements dictate that this fasteningsystem must possess a safety factor of 1.5. Use the preloaddetermined in Part A when calculating the bolted joints safety indynamic loading in Part B. (Note: One may find km using the methodoutlined in class, or one may use Eqn. 15.19 on p. 929). a) If thesteel cap experiences a static external load of 30 kN, is thisdesign safe? b) If the steel cap experiences an external load thatvaries from 10-20 kN and the bolted joint must be 99% reliable, isthis design safe?
