25. A flanged bolt coupling consists of six 10 mm dia. steel bolts
around a bolt circle of 300 mm in dia. and four 20 mm dia.
aluminum bolts on a concentric bolt circle of 200 mm in dia.
What torque can be applied w/o exceeding a shearing stress of
60 MPa in the steel or 40 MPa in the aluminum. Use Gst = 83
GPa and Gal = 25 GPa
(ANS. 5.94 kN-m)
