At room temperature (20°C) a 0.5-mm gap exists between the ends of the rods shown in the figure. At a later time when the temperature has reached 140°C, determine (a) the normal stress in the aluminum rod, (b) the change in length of the aluminum rod. 0.5 mm 300 mm- – 250 mm Stainless steel A = S00 mm Aluminum I A= 2000 mm² E- 75 GPa a = 23 × 10-9ºC E = 190 GPa a = 17.3 x 10-FC Aluminum Stainless steel

At room temperature (20°C) a 0.5-mm gap exists between the ends of the rods shown in the figure. At a later time when the temperature has reached 140°C, determine (a) the normal stress in the aluminum rod, (b) the change in length of the aluminum rod. 0.5 mm 300 mm- – 250 mm Stainless steel A = S00 mm Aluminum I A= 2000 mm² E- 75 GPa a = 23 × 10-9ºC E = 190 GPa a = 17.3 x 10-FC Aluminum Stainless steel

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter2: Axially Loaded Members

Section: Chapter Questions

Problem 2.5.13P: Rectangular bars of copper and aluminum are held by pins at their ends, as shown in the figure. Thin...

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