Meena Rezkallah, P.Eng.Apr 9, 20202 min readPiping Stress Analysis1.5.2 Code Stress EquationsThe piping code stress equations are a direct outgrowth of the theoretical and investigative work discussed above, with specific...
Meena Rezkallah, P.Eng.Apr 7, 20204 min readPiping Stress Analysis1.5.1 Primary vs. Secondary LoadsMarkl's investigation of the fatigue problem, following the earlier recognition of the maximum stress theory of failure, led to...
Meena Rezkallah, P.Eng.Apr 3, 20203 min readPiping Stress Analysis1.4 Welding Research Council Bulletin 330The Welding Research Council's Bulletin 330, "Accuracy of Code Stress Intensification Factors for Branch Connections" documented a major...
Meena Rezkallah, P.Eng.Mar 29, 20203 min readPiping Stress Analysis1.3 Stress Intensification FactorsAs noted previously, Markl's fatigue tests generated endurance curves for various fitting configurations, such as straight pipe, butt...
Meena Rezkallah, P.Eng.Mar 22, 20202 min readPiping Stress Analysis1.2.5 Effect of Sustained Loads on Fatigue StrengthIn almost all cases the material fatigue curves are generated using a completely alternating stress; i.e., the average stress component...