For the assembly similar to the one in Fig. 8-21, the bolt of in-13-UNC-2A grade...

 

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For the assembly similar to the one in Fig. 8-21, the bolt of ½ in-13-UNC-2A grade 8 with rolled threads is preloaded to 80% of its proof strength. There is a static 1500-lb load applied to the assembly to separate the joint. It is known that k, = 1.2 x 106 lbf/in and km = 8.4 x 105 lbf/in (1) Find the load factor n. (2) Find the factor of safety against static failure n. (3) Find the factor of safety against joint separation no. (4) Plot out n vs. % and no vs % where % represents the percentage of the proof load or F%A,Sp. Find % that makes n = no. Spur gears Bronze bushings Foot Bearings C.I. Motor Helical gears 2 ['s -2L 's Collar bearing For the assembly similar to the one in Fig. 8-21, the bolt of ½ in-13-UNC-2A grade 8 with rolled threads is preloaded to 80% of its proof strength. There is a static 1500-lb load applied to the assembly to separate the joint. It is known that k, = 1.2 x 106 lbf/in and km = 8.4 x 105 lbf/in (1) Find the load factor n. (2) Find the factor of safety against static failure n. (3) Find the factor of safety against joint separation no. (4) Plot out n vs. % and no vs % where % represents the percentage of the proof load or F%A,Sp. Find % that makes n = no. Spur gears Bronze bushings Foot Bearings C.I. Motor Helical gears 2 ['s -2L 's Collar bearing