dun (a) (b) (c) PROBLEM 2.3-12
A bar ABC length L consists of two parts of equal lengths but different diameters.Segment AB has diameter dt=100 mm,and segment BC has diameter d2 = 60 mm.Both segments have a length B2=0.6 m.A longitudinal hole of diameter d is drilled through segment AB for one half of its length (distance L/4 = 0.3 m).The bar is made plastic having a module of elasticity E=4.0 GPa.Comprssive loads P = 110 KN act at the ends of the bar.
(a) If the shortening of the bar is limited to 8.0 mm.What is the maximum allowable diameter dma of the hole? (see the figure part a.)
(b) Now if daxx is instead set at p1/2 . at what distanc h from end c should load P be applied to limit the bar shortening to 8.0 mm?(see the figure part b)
(c) Finally if loads t are applied at the ends and "mm is the permissible length.v of the hole if shortening is to be limited to 8.0 mm?(see the figure part c)
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