A hook (Figure 7-27) for hoisting containers of ore in a mine is to be designed using a nonferrous (not based on iron) material. (A nonferrous material is used because iron and steel could cause a spark that would ignite explosive gases in the mine.) The hook must support a load of 25,000 pounds, and a factor of safety of 2 should be used. We have determined that the cross-section labeled ‘‘?’’ is the most critical area; the rest of the device is already well overdesigned. Determine the design requirements for this device and, based on the mechanical property data given on the table design the hook and select an economical material for the hook.
A hook (Figure 7-27) for hoisting containers of ore in a mine is to be designed using a nonferrous (not based on iron) material. (A nonferrous material is used because iron and steel could cause a spark that would ignite explosive gases in the mine.) The hook must support a load of 25,000 pounds, and a factor of safety of 2 should be used. We have determined that the cross-section labeled ‘‘?’’ is the most critical area; the rest of the device is already well overdesigned. Determine the design requirements for this device and, based on the mechanical property data given on the table design the hook and select an economical material for the hook.
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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A hook (Figure 7-27) for hoisting containers
of ore in a mine is to be designed using a nonferrous (not based on iron) material. (A nonferrous material is used because iron and steel
could cause a spark that would ignite explosive
gases in the mine.) The hook must support a
load of 25,000 pounds, and a factor of safety of 2
should be used. We have determined that the
cross-section labeled ‘‘?’’ is the most critical
area; the rest of the device is already well overdesigned. Determine the design requirements for
this device and, based on the
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