For a bolted assembly with four bolts, the stiffness of each bolt is kb = 3.0 MN/mm and the stiffness at the members is km = 4.2 MN/mm per bolt. The bolts are pre-loaded to 75% of the proof strength. Assume the external load is equally distributed to all the bolts. The bolts are M16x1.5 class 8.8 with rolled threads. A fluctuating external load is applied to the entire joint with Pmax = 160 kN and Pmin = 80 kN. Determine the factor of safety against fatigue failure using the Goodman criterion.
For a bolted assembly with four bolts, the stiffness of each bolt is kb = 3.0 MN/mm and the stiffness at the members is km = 4.2 MN/mm per bolt. The bolts are pre-loaded to 75% of the proof strength. Assume the external load is equally distributed to all the bolts. The bolts are M16x1.5 class 8.8 with rolled threads. A fluctuating external load is applied to the entire joint with Pmax = 160 kN and Pmin = 80 kN. Determine the factor of safety against fatigue failure using the Goodman criterion.
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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![For a bolted assembly with four bolts, the stiffness of each bolt is
kb = 3.0 MN/mm and the stiffness at the members is km = 4.2
MN/mm per bolt. The bolts are pre-loaded to 75% of the proof
strength.
Assume the external load is equally distributed to all the bolts.
The bolts are M16x1.5 class 8.8 with rolled threads. A fluctuating
external load is applied to the entire joint with Pmax = 160 kN and
Pmin = 80 kN.
Determine the factor of safety against fatigue failure using the
Goodman criterion.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa36211ff-413d-45db-8330-03ac493e19cc%2F6baba49f-c6c9-486e-8e33-d1ed1ae4e6e4%2Flrhdotj_processed.png&w=3840&q=75)
Transcribed Image Text:For a bolted assembly with four bolts, the stiffness of each bolt is
kb = 3.0 MN/mm and the stiffness at the members is km = 4.2
MN/mm per bolt. The bolts are pre-loaded to 75% of the proof
strength.
Assume the external load is equally distributed to all the bolts.
The bolts are M16x1.5 class 8.8 with rolled threads. A fluctuating
external load is applied to the entire joint with Pmax = 160 kN and
Pmin = 80 kN.
Determine the factor of safety against fatigue failure using the
Goodman criterion.
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