Comparison of existing plastic collapse load solutions with experimental data for 90° elbows

Application of failure assessment diagram methods to cracked straight pipes and elbows

“…However, the influence of chosen yield criterion is more significant then strain hardening exponent. Therefore, as can be seen from the review [20], the limit load solution is presented as a function of component and crack geometry only.…”

Plastic limit loads for pipe bends with circumferential through-wall crack under torsion moment

“…Experiment data for several plastic materials such as steel, copper and aluminum show that Mises yield criterion based results can predict experiment data well compared to other analytical results [56]. Some relevant experiment data for pipe bends can be available in the past literatures [7,57]. Table 2 shows comparison of the estimated FE results by Eqs.…”

Determination of collapse loads in pipe bends with ovality and variable wall thickness under internal pressure and in-plane opening moment

“…(9) for different ranges of geometric parameters to get best fit, is closely 0.99. The average error for the range 0.1 l < 0.3 is 2.3% for the percent ovality range 0 < To verify the equation, the experimental collapse loads of Greenstreet taken from Han et al [30] are compared with the present models with ovality as given in Table 2. The ovality of the experimental pipe bend is not clearly known and hence it is not reported.…”