Stress amplitude, S (MPa)50040030020010018070605040302010Stress amplitude (ksi)1045 steel2014-T6 aluminum alloyRed brass0010³104 105107 108 1091010106Cycles to failure, N3-S-N curve for several different engineering materials (meanA 6.4 mm diameter cylindrical rod fabricated form 1045 steel is subjected tofully reversed tensile-compression loading. If the maximum tensile andcompressive loads are 10300N, determine the fatigue life.

A 6.4 mm diameter cylindrical rod fabricated form 1045 steel is subjected to fully reversed tensile-compression loading. If the maximum tensile and compressive loads are 10300N, determine the fatigue life.

A 6.4 mm diameter cylindrical rod fabricated form 1045 steel is subjected to fully reversed tensile-compression loading. If the maximum tensile and compressive loads are 10300N, determine the fatigue life.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Bars

In civil engineering, bars refer to steel reinforcement bars or rebars. These are structural members primarily used for reinforcement purposes in masonry works. A bar is characterized by its cross-sectional area, which is negligible compared to its length. Bars are usually manufactured by steel which is uniform throughout the length, or by meshing multiple steel wires. Other materials of the bar include carbon steel, glass fiber, carbon fiber, and basalt fiber. The reinforcing bars are coated with epoxy resins and other materials to enhance some of their properties including corrosion resistance.

Question

Stress amplitude, S (MPa)
500
400
300
200
100
180
70
60
50
40
30
20
10
Stress amplitude (ksi)
1045 steel
2014-T6 aluminum alloy
Red brass
0
0
10³
104 105
107 108 109
1010
106
Cycles to failure, N
3-S-N curve for several different engineering materials (mean
A 6.4 mm diameter cylindrical rod fabricated form 1045 steel is subjected to
fully reversed tensile-compression loading. If the maximum tensile and
compressive loads are 10300N, determine the fatigue life.

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