7) The rigid bar ABCD is supported by aluminum spring with 12 turns of 25mm diameter wire in a mean radius of 100mm and a steel spring with 10 turns of 20mm diameter wire in a mean radius of 125mm as shown in the figure. If the allowable shearing stress in the springs are 60 MPa for steel and 40 MPa for aluminum, determine the safe value of P that can be applied. Use G = 83 GPa for 16 PRn [4m-1 4m-4 0.615] steel, G= 28 GPa for aluminum and Equation (3-10)T = nd Aluminum Steel 1.20m 2.40m 1.80m
7) The rigid bar ABCD is supported by aluminum spring with 12 turns of 25mm diameter wire in a mean radius of 100mm and a steel spring with 10 turns of 20mm diameter wire in a mean radius of 125mm as shown in the figure. If the allowable shearing stress in the springs are 60 MPa for steel and 40 MPa for aluminum, determine the safe value of P that can be applied. Use G = 83 GPa for 16 PRn [4m-1 4m-4 0.615] steel, G= 28 GPa for aluminum and Equation (3-10)T = nd Aluminum Steel 1.20m 2.40m 1.80m
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Subject: STRENGTH OF MATERIALS (Civil Engineering)
Round off to three decimal places
![7) The rigid bar ABCD is supported by aluminum spring with 12 turns of 25mm
diameter wire in a mean radius of 100mm and a steel spring with 10 turns of
20mm diameter wire in a mean radius of 125mm as shown in the figure. If the
allowable shearing stress in the springs are 60 MPa for steel and 40 MPa for
aluminum, determine the safe value of P that can be applied. Use G = 83 GPa for
16 PRn [4m-1
nd [4m-4
0.615]
steel, G= 28 GPa for aluminum and Equation (3-10)T =
m
Aluminum
Steel
1.20m
2.40m
1.80m](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fce3f9082-2e9b-4cee-848f-2685f8df402d%2F3c3eb973-23ea-416b-9667-88c5f713ebcd%2Fidzv0f_processed.jpeg&w=3840&q=75)
Transcribed Image Text:7) The rigid bar ABCD is supported by aluminum spring with 12 turns of 25mm
diameter wire in a mean radius of 100mm and a steel spring with 10 turns of
20mm diameter wire in a mean radius of 125mm as shown in the figure. If the
allowable shearing stress in the springs are 60 MPa for steel and 40 MPa for
aluminum, determine the safe value of P that can be applied. Use G = 83 GPa for
16 PRn [4m-1
nd [4m-4
0.615]
steel, G= 28 GPa for aluminum and Equation (3-10)T =
m
Aluminum
Steel
1.20m
2.40m
1.80m
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