Pipe Stress Analysis Basics | Little P.Eng.| Little P.Eng. for Engineering Services [(Structural/Piping/Seismic/Material Handling/Storage Tank/Pressure Vessels) Design/CRN Registration] | https://static.wixstatic.com/media/f3609c_d03c7550ae0843749d51222a5416b71b~mv2.jpg 20/22

Mar 29, 20203 min read

1.3 Stress Intensification Factors

As noted previously, Markl's fatigue tests generated endurance curves for various fitting configurations, such as straight pipe, butt...

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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...

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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....

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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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