Two identical aluminum plates are each 3 in thick, and are com Washers are used under the head of the bolt and under the nut. Washer properties: steel; ID = 0.531 in; OD = 1.062 in; thickne Nut properties: steel; height =7/16 in Bolt properties: 1/2 in-13 UNC grade 8 Plate properties: aluminum; E = 10.3 Mpsi; Su = 47 kpsi; Sy =

Two identical aluminum plates are each 3 in thick, and are com Washers are used under the head of the bolt and under the nut. Washer properties: steel; ID = 0.531 in; OD = 1.062 in; thickne Nut properties: steel; height =7/16 in Bolt properties: 1/2 in-13 UNC grade 8 Plate properties: aluminum; E = 10.3 Mpsi; Su = 47 kpsi; Sy =

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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Concept explainers

Metrology of Screw Threads

Screw threads are a series of ridges having the profile of a helix. This helix profile runs continuously along the length of a uniform solid or a hollow bar of a circular cross-section at periodic intervals. These helix ridges are also formed over a conical bar. These continuous helical ridges are termed threads.

Question

Two identical aluminum plates are each 3 in thick, and are compressed with one bolt and nut.
Washers are used under the head of the bolt and under the nut.
Washer properties: steel; ID = 0.531 in; OD = 1.062 in; thickness = 0.095 in
Nut properties: steel; height = 7/16 in
Bolt properties: 1/2 in-13 UNC grade 8
Plate properties: aluminum; E = 10.3 Mpsi; Su = 47 kpsi; Sy = 25 kpsi
(a) Determine a suitable length for the bolt, rounded up to the nearest 1/4 in.
(b) Determine the bolt stiffness.
(c) Determine the stiffness of the members.

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