MAR-M-247 creep assessment through a modified theta projection model

Life Fraction Hardening Applied to a Modified Theta Projection Creep Model for a Nickel-Based Super-Alloy

This paper presents the application of a life fraction hardening rule to the analytical calculation of creep in hot section components. Accurate prediction of creep is critical to assuring the mechanical integrity of heavy-duty, industrial gas turbine (IGT) hardware. The accuracy of such predictions depend upon both the creep models assumed and how those models are implemented in a finite eleme...

a modified geosite assessment model (m-gam) and its application on the lazar canyon area (serbia)

the aim of this paper is to present a modified version of gam (m-gam) which should showthat the results gained by using this version are more accurate and realistic. the modification is based on theinclusion of tourists and their opinion regarding the importance of indicators in the assessment process. theassessment was done by using both versions of gam and the results were compared and analyz...

Creep Life Assessment of Primary Reformer HP40-NB Modified Steel Tube of an Ammonia Plant

Assessment of creep damage and residual creep life of a cast HP 40 Nb Mod. Reformer tube was performed, wherein the experimental Larson–Miller diagram and area fraction of creep voids were adopted. The state of damage of the tube in service was metallographically analyzed by using light and electron microscopy. Samples from the serviced reformer furnace tube were cut and prepared for void exami...

Projection density estimation under a m-sample semiparametric model

An m-sample semiparametric model in which the ratio of m − 1 probability density functions with respect to the mth is of a known parametric form without reference to any parametric model is considered. This model arises naturally from retrospective studies and multinomial logistic regression model. A projection density estimator is constructed by smoothing the increments of the maximum semipara...

fst M fst M First projection snd M snd M Second projection 〈 〉 () Unit element λu:A. M fn u => M Abstraction