A threaded steel rod (E=210 GPa, dr = 15mm, linear coefficient of expansion= 12x10-6/0C) is held stress-free between rigid walls by a nut and washer (dw = 22mm) assembly at each end. If the allowable bearing stress between the washer and the wall is 55 MPa and the allowable normal stress in the rod is 90MPA, determine the maximum permissible temperature drop.

A threaded steel rod (E=210 GPa, dr = 15mm, linear coefficient of expansion= 12x10-6/0C) is held stress-free between rigid walls by a nut and washer (dw = 22mm) assembly at each end. If the allowable bearing stress between the washer and the wall is 55 MPa and the allowable normal stress in the rod is 90MPA, determine the maximum permissible temperature drop.

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter1: Introduction

Section: Chapter Questions

Problem 1.5.6P: The data in Table 1.5.3 were obtained from a tensile test of a metal specimen with a rectangular...

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Concept explainers

Dependence on mechanical properties

The mechanical properties of materials are those structures that include the reaction to the load used. Metal switching features determine the scope of the usefulness of the content and establish the expected service life. Machine structures are also used to help distinguish and identify material objects. The most common mechanical properties considered are strength, ductility, stiffness, impact resistance, and resilience to fractures.

Question

A threaded steel rod (E=210 GPa, dr= 15mm, linear coefficient of expansion=
12x10-6/0C) is held stress-free between rigid walls by a nut and washer (dw = 22mm)
assembly at each end. If the allowable bearing stress between the washer and the wall
is 55 MPa and the allowable normal stress in the rod is 90MPA, determine the
maximum permissible temperature drop.

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