Part 1: Piping System SIFs and Flexibility Analysis Criteria: Effect of Loading and Stress-Strain Curve on Stress Instensification Factors
The basic objective of this investigation is to determine the effect of loading and the shape of the stress-strain curve on the stress intensification factors of Markl's fatigue evaluation method for metal piping. Markl's method is based on the fatigue testing of cantilever piping. Subsequent testing using a four-point loading showed that the S-N data were different from that predicted by the equation developed by Markl.
Previous analytical work on this topic [1] showed that these differences should occur from cantilever and fourpoint tests. The basic assumption in this analytical comparison is that strain-cycle correlations lead to the correct fatigue life. Given an alternating strain, both types of testing lead to the same predicting of fatigue life using strain-cycle correlations.
Part 2: Piping System SIFs and Flexibility Analysis Criteria: Investigation of Criteria Where Piping System Analysis is Not Required by ASME Piping Codes B31.1 and B31.3
Report 2 investigates the background of the criteria, the various criteria equations, the associated "warnings" and the accuracy of the criteria equations.
| File Size : | 1
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| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 38 |
| Published : | 2004 |
