1.) An aluminum tube is clamped with rigid plates using four bolts as shown. The nut on each bolt is tightened one turn from 'snug'. The thickness of the plate may be considered insignificant in this question. a.) Find the elongation of the bolts. b.) Find the stress in the bolts and tube. 450 mm M8 x 1.00 thread Rigid plate 8mm dia. bolt Aluminum tube 150 mm OD 140 mm ID