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Mar 22, 20202 min read

1.2.5 Effect of Sustained Loads on Fatigue Strength

In almost all cases the material fatigue curves are generated using a completely alternating stress; i.e., the average stress component...

Mar 22, 20201 min read

1.2.4 Cyclic Reduction Factor

At some point, in the vicinity of 7,000 cycles, the (Syc + Syh) limitation intersects the fatigue curve for carbon and low alloy steel....

Mar 21, 20202 min read

1.2.3 Effect of Fatigue on Piping

A. R. C. Markl investigated the phenomenon of fatigue failure of piping during the 1940's and 1950's, and published his results in papers...

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Mar 20, 20202 min read

1.2.2 Fatigue Curves

A plot of the cyclic stress capacity of a material is called a fatigue (or endurance) curve. These curves are generated through multiple...

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Mar 20, 20202 min read

1.2.1 Fatigue Basics

Steels and other metals are made up of organized patterns of molecules, known as crystal structures. However, these patterns are not...

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