A steel rod of 15- mm diameter is held snugly (but without any initial stresses) between rigid walls by the arrangement shown in the figure part (a). (For the steel rod, use α = 12 x 10-6/˚C and E = 200 GPa.) Calculate the temperature drop ΔT (degrees Celsius) at which the average shear stress in the 12 – mm diameter bolt becomes 45 MPa. Also, what
A steel rod of 15- mm diameter is held snugly (but without any initial stresses) between rigid walls by the arrangement shown in the figure part (a). (For the steel rod, use α = 12 x 10-6/˚C and E = 200 GPa.) Calculate the temperature drop ΔT (degrees Celsius) at which the average shear stress in the 12 – mm diameter bolt becomes 45 MPa. Also, what
Steel Design (Activate Learning with these NEW titles from Engineering!)
6th Edition
ISBN:9781337094740
Author:Segui, William T.
Publisher:Segui, William T.
Chapter5: Beams
Section: Chapter Questions
Problem 5.15.8P: Same as Problem 5.15-7, except that the sag rods are al the third points.
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Question
- A steel rod of 15- mm diameter is held snugly (but without any initial stresses) between rigid walls by the arrangement shown in the figure part (a). (For the steel rod, use α = 12 x 10-6/˚C and E = 200 GPa.)
- Calculate the temperature drop ΔT (degrees Celsius) at which the average shear stress in the 12 – mm diameter bolt becomes 45 MPa. Also, what is the normal stress in the rod?
- What are the average bearing stresses in the bolt and clevis at A and between the washer (dW = 20mm) and wall (t = 18 mm) at B?
- If the connection to the wall at B is changed to an end plate with two bolts (see figure part b), what is the required diameter db of each bolt if the temperature drop is ΔT = 38˚C and the allowable bolt stress is 90 MPa?
![12-mm diameter bolt
Clevis,
1 = 10 mm
12-mm diameter bolt
Clevis,
t = 10 mm
AT
AT
15 mm
(a)
15 mm
(b)
B
Washer,
dw = 20 mm
18 mm
Bolt and washer
(dy, dw)
P00
Mounting
plate (1)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff563cc88-b995-48cf-86c6-3b8322b1ad70%2F9c77093a-d579-49ce-be4c-fee36c99b8f7%2Fgmivbl_processed.png&w=3840&q=75)
Transcribed Image Text:12-mm diameter bolt
Clevis,
1 = 10 mm
12-mm diameter bolt
Clevis,
t = 10 mm
AT
AT
15 mm
(a)
15 mm
(b)
B
Washer,
dw = 20 mm
18 mm
Bolt and washer
(dy, dw)
P00
Mounting
plate (1)
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