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rigid block of weight W is supported by three symmetrically spaced rods as shown in the Figure. Each copper rod has an area of 610 mm^2; E = 120 GPa; length of 160 mm and the allowable stress is 30 MPa. The steel rod has an area of 1010 mm^2; E = 200 GPa; length=320 mm and the allowable stress is 60 MPa. Determine the following:

rigid block of weight W is supported by three symmetrically spaced rods as shown in the Figure. Each copper rod has an area of 610 mm^2; E = 120 GPa; length of 160 mm and the allowable stress is 30 MPa. The steel rod has an area of 1010 mm^2; E = 200 GPa; length=320 mm and the allowable stress is 60 MPa. Determine the following:

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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PROBLEM 1: A rigid block of weight W is supported by three symmetrically spaced rods as shown in the Figure. Each copper rod has an area of 610 mm^2; E = 120 GPa; length of 160 mm and the allowable stress is 30 MPa. The steel rod has an area of 1010 mm^2; E = 200 GPa; length= 320 mm and the allowable stress is 60 MPa. Determine the following: Copper I W 3. Actual stress in the steel? Steel Copper 1. Largest weight of W (in kN) which can be supported by the system. 2. Actual stress in the copper? 4. What lengths should the identical copper rods be so that all of the materials will be stressed simultaneously to its allowable limit? KN MPa MPa mm
Transcribed Image Text:PROBLEM 1: A rigid block of weight W is supported by three symmetrically spaced rods as shown in the Figure. Each copper rod has an area of 610 mm^2; E = 120 GPa; length of 160 mm and the allowable stress is 30 MPa. The steel rod has an area of 1010 mm^2; E = 200 GPa; length= 320 mm and the allowable stress is 60 MPa. Determine the following: Copper I W 3. Actual stress in the steel? Steel Copper 1. Largest weight of W (in kN) which can be supported by the system. 2. Actual stress in the copper? 4. What lengths should the identical copper rods be so that all of the materials will be stressed simultaneously to its allowable limit? KN MPa MPa mm
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