کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
777678 1463779 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An approach to life prediction for a nickel-base superalloy under isothermal and thermo-mechanical loading conditions
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
An approach to life prediction for a nickel-base superalloy under isothermal and thermo-mechanical loading conditions
چکیده انگلیسی

Scope of the present work is the development of a unified approach for the life prediction under isothermal and thermo-mechanical loading conditions. The basis for the life prediction is the stress–strain response of the material for one selected cycle obtained in the context of a Finite Element Analysis. Here the application of an appropriate inelastic constitutive model is essential. A phenomenological fatigue model is proposed which is able to describe mean-stress effects, as well as dependencies on hold time and cycle duration with reasonable accuracy. The model performance is compared with that of a mechanism based literature model. The model accuracy is evaluated on a statistical basis through an evaluation of the variance in the ratio between predicted life and actual life.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Fatigue - Volume 53, August 2013, Pages 49–57
نویسندگان
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