Two initially straight bars are joint together and attached to support as shown in Figure 4. Let us suppose that the system is initially stress free and that the temperature then drops 20°C. (a) If the supports are unyielding, find the normal stress in each bar. (b) If the right support yields 0.1 mm, find the normal stress in each bar. Aluminium Brass E = 70 GPa E = 90 GPa a = 20 x 10-6/0C A = 500 mm2 a = 25 x 106/°c A = 750 mm? 500 mm 250 mm Figure 4

Two initially straight bars are joint together and attached to support as shown in Figure 4. Let us suppose that the system is initially stress free and that the temperature then drops 20°C. (a) If the supports are unyielding, find the normal stress in each bar. (b) If the right support yields 0.1 mm, find the normal stress in each bar. Aluminium Brass E = 70 GPa E = 90 GPa a = 20 x 10-6/0C A = 500 mm2 a = 25 x 106/°c A = 750 mm? 500 mm 250 mm Figure 4

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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