Detail publikačního výsledku

Multi-scale modeling of damage development in a thermal barrier coating

SAUCEDO-MORA, L.; SLÁMEČKA, K.; THANDAVAMOORTHY, U.; MARROW, T.

Originální název

Multi-scale modeling of damage development in a thermal barrier coating

Anglický název

Multi-scale modeling of damage development in a thermal barrier coating

Druh

Článek WoS

Originální abstrakt

A multi-scale Finite Element Microstructure MEshfree (FEMME) fracture model for quasi-brittle materials with complex microstructures is applied to simulate thermo-mechanical damage in a plasma-sprayed thermal barrier coating system. This novel multi-scale technique for damage simulation allows the influence of the microstruc- ture of the yttria-stabilized zirconia top coat and the geometry of the bond coat and the thermally grown oxide layer to be considered with computational efficiency. Mechanical damage, due to the thermal strain of an applied temperature difference, is predicted to decrease the top coat Young's modulus. The interaction between the evolution of damage and temperatures within the top coat is also simulated, demonstrating the capability of this methodology to address coupled multi-scale problems.

Anglický abstrakt

A multi-scale Finite Element Microstructure MEshfree (FEMME) fracture model for quasi-brittle materials with complex microstructures is applied to simulate thermo-mechanical damage in a plasma-sprayed thermal barrier coating system. This novel multi-scale technique for damage simulation allows the influence of the microstruc- ture of the yttria-stabilized zirconia top coat and the geometry of the bond coat and the thermally grown oxide layer to be considered with computational efficiency. Mechanical damage, due to the thermal strain of an applied temperature difference, is predicted to decrease the top coat Young's modulus. The interaction between the evolution of damage and temperatures within the top coat is also simulated, demonstrating the capability of this methodology to address coupled multi-scale problems.

Klíčová slova

Thermal barrier coating, Thermally grown oxide, Top coat, Damage, Multi-scale numerical model, Roughness

Klíčová slova v angličtině

Thermal barrier coating, Thermally grown oxide, Top coat, Damage, Multi-scale numerical model, Roughness

Autoři

SAUCEDO-MORA, L.; SLÁMEČKA, K.; THANDAVAMOORTHY, U.; MARROW, T.

Rok RIV

2016

Vydáno

25.08.2015

ISSN

0257-8972

Periodikum

SURFACE & COATINGS TECHNOLOGY

Svazek

276

Číslo

1

Stát

Švýcarská konfederace

Strany od

399

Strany do

407

Strany počet

9

BibTex

@article{BUT114978,
  author="Luis {Saucedo-Mora} and Karel {Slámečka} and Uma {Thandavamoorthy} and Thomas James {Marrow}",
  title="Multi-scale modeling of damage development in a thermal barrier coating",
  journal="SURFACE & COATINGS TECHNOLOGY",
  year="2015",
  volume="276",
  number="1",
  pages="399--407",
  doi="10.1016/j.surfcoat.2015.06.038",
  issn="0257-8972"
}