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SITUATION 1. A composite bar is made by attaching a copper rod of length 900 mm and diameter 30 mm and a brass rod of length 600 mm and diameter 45 mm as shown. A load of 20 kN is applied at 20°C. For copper, E = 120 GPa and a = 18 x 10-6/°C. For brass, E = 90 GPa and a = 20 x 10-6/°C. The temperature rises to 50°C. Copper 44.95 MPa 63.29 MPa 72.84 MPa 900 mm 40.70 MPa + What is the stress in the copper rod if the supports are unyielding? Brass - 20 kN 600 mm

SITUATION 1. A composite bar is made by attaching a copper rod of length 900 mm and diameter 30 mm and a brass rod of length 600 mm and diameter 45 mm as shown. A load of 20 kN is applied at 20°C. For copper, E = 120 GPa and a = 18 x 10-6/°C. For brass, E = 90 GPa and a = 20 x 10-6/°C. The temperature rises to 50°C. Copper 44.95 MPa 63.29 MPa 72.84 MPa 900 mm 40.70 MPa + What is the stress in the copper rod if the supports are unyielding? Brass - 20 kN 600 mm

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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SITUATION 1. A composite bar is made by attaching a copper rod of length 900 mm and diameter 30 mm and a brass rod of length 600 mm and diameter 45 mm as shown. A load of 20 kN is applied at 20°C. For copper, E = 120 GPa and a = 18 x 10-6/°C. For brass, E = 90 GPa and a = 20 x 10-6/°C. The temperature rises to 50°C. Copper 44.95 MPa 63.29 MPa 72.84 MPa 900 mm 40.70 MPa + What is the stress in the copper rod if the supports are unyielding? Brass - 20 kN 600 mm
Transcribed Image Text:SITUATION 1. A composite bar is made by attaching a copper rod of length 900 mm and diameter 30 mm and a brass rod of length 600 mm and diameter 45 mm as shown. A load of 20 kN is applied at 20°C. For copper, E = 120 GPa and a = 18 x 10-6/°C. For brass, E = 90 GPa and a = 20 x 10-6/°C. The temperature rises to 50°C. Copper 44.95 MPa 63.29 MPa 72.84 MPa 900 mm 40.70 MPa + What is the stress in the copper rod if the supports are unyielding? Brass - 20 kN 600 mm
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