TY - JOUR

T1 - Damage prediction for un-coated and coated aluminum alloys under thermal and mechanical fatigue loadings based on a modified plastic strain energy approach

T2 - Lightweight Materials and Structural Solutions for Transport Applications

AU - Azadi, Mohammed

AU - Farrahi, Gholam Hossein

AU - Winter, Gerhard

AU - Huter, Patrik

AU - Eichlseder, Wilfried

PY - 2015/2/5

Y1 - 2015/2/5

N2 - In this article, a novel energy-based lifetime prediction model has been presented for uncoated and coated aluminum alloys, subjected to thermal and mechanical fatigue loadings. For this objective, isothermal and thermo-mechanical fatigue tests were performed on the A356.0 alloy, with and without thermal barrier coating systems. This model, which was based on the plastic strain energy, had three correction factors including temperature, strain and mean stress effects. The predicted lifetime showed a proper agreement with experimental data. By the present model, higher accuracy was obtained in comparison to other existed approaches. Besides, the present model had lower number of material constants.

AB - In this article, a novel energy-based lifetime prediction model has been presented for uncoated and coated aluminum alloys, subjected to thermal and mechanical fatigue loadings. For this objective, isothermal and thermo-mechanical fatigue tests were performed on the A356.0 alloy, with and without thermal barrier coating systems. This model, which was based on the plastic strain energy, had three correction factors including temperature, strain and mean stress effects. The predicted lifetime showed a proper agreement with experimental data. By the present model, higher accuracy was obtained in comparison to other existed approaches. Besides, the present model had lower number of material constants.

UR - http://www.sciencedirect.com/science/article/pii/S0261306914002908

M3 - Artikel

VL - 66

SP - 587

JO - Materials and Design

JF - Materials and Design

SN - 1873-4197

IS - 5

ER -