An aluminium rod 20 mm in diameter is screwed at the ends and passes through a 25 mm bore steel tube 3 mm thick. Rigid washers and nuts are the fitted to the screwed ends of the aluminium rod and the whole system heated to 140°C, when the nuts on the rod are lightly tightened to take up any slack. Calculate the stress in the rod and tube when the assembly has cooled to 20°C. (EST = 200 GPa; EAL = 70 GPa; asr = 12 x 10-6 /°C; aAL. = 23 x 10-6 /°C)

An aluminium rod 20 mm in diameter is screwed at the ends and passes through a 25 mm bore steel tube 3 mm thick. Rigid washers and nuts are the fitted to the screwed ends of the aluminium rod and the whole system heated to 140°C, when the nuts on the rod are lightly tightened to take up any slack. Calculate the stress in the rod and tube when the assembly has cooled to 20°C. (EST = 200 GPa; EAL = 70 GPa; asr = 12 x 10-6 /°C; aAL. = 23 x 10-6 /°C)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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