Question (3): At a temperature of 5°C, 3 mm gap exists between two polymer bars and rigid support, as shown in the (Fig.3). Bar (1) is 50 mm wide and 20 mm thick [ E = 800 Mpa, a = 140 x 10-6 /°C ]. Bar(2) is 75 mm wide and 25 mm thick [E = 2.7 Gpa, a = 67 x 10-6/°C]. The supports at A and C are rigid. Determine : the lowest temperature at which the 3mm gap is closed, the normal sresses in the bars(1) & (2) and the normal strains in the bars (1) & (2). Fig. 3 (1) 3-mm gap 50 mm 700 mm B 75 mm 400 mm C

Question (3): At a temperature of 5°C, 3 mm gap exists between two polymer bars and rigid support, as shown in the (Fig.3). Bar (1) is 50 mm wide and 20 mm thick [ E = 800 Mpa, a = 140 x 10-6 /°C ]. Bar(2) is 75 mm wide and 25 mm thick [E = 2.7 Gpa, a = 67 x 10-6/°C]. The supports at A and C are rigid. Determine : the lowest temperature at which the 3mm gap is closed, the normal sresses in the bars(1) & (2) and the normal strains in the bars (1) & (2). Fig. 3 (1) 3-mm gap 50 mm 700 mm B 75 mm 400 mm 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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