a. Estimate the pressure at the following altitudes: 12,000, 20,000, 30,000 & 38
ID: 2086873 • Letter: A
Question
a. Estimate the pressure at the following altitudes: 12,000, 20,000, 30,000 & 38,000 ft. Plot these on a graph and comment on the data. (Hint, these are estimates.)
b. Use the Hunt Library or another to research the various rivets used in the aviation industry. Summarize what you believe are the four most typical. What rivets are most suited for use with only access to one side of the panel?
c. Figure 1, shows a bracket used on a B 757 fuselage. There are 11 rivets, each of 4 mm diameter. The shear stress is 180 MPa. What is the maximum load theory states it can withstand and assuming a safety-factor of 2.5, what is it in practice?
Figure 1
d. What are the main advantages of rivets in lieu of threaded fasteners?
Figure 1 (Image: lan McAndrew)Explanation / Answer
Rivets offer a number of advantages over threaded bolts. They won’t loosen when subjected to vibration, and can secure joints with short clamp length. On the other hand, compared to threaded bolts, they are cumbersome and time consuming to install and remove, and offer limited clamp load.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.