Sadowski / Golewski Loadings in Thermal Barrier Coatings of Jet Engine Turbine Blades

An Experimental Research and Numerical Modeling
1. Auflage 2016
ISBN: 978-981-10-0919-8
Verlag: Springer Singapore
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 110 Seiten, eBook

Reihe: SpringerBriefs in Computational Mechanics

This book discusses complex loadings of turbine blades and protective layer Thermal Barrier Coating (TBC), under real working airplane jet conditions. They obey both multi-axial mechanical loading and sudden temperature variation during starting and landing of the airplanes. In particular, two types of blades are analyzed: stationary and rotating, which are widely applied in turbine engines produced by airplane factories.

Zielgruppe

Research

Autoren/Hrsg.

Sadowski, Tomasz

Golewski, Przemyslaw

Inhaltsverzeichnis

1;Preface;6
1.1;Acknowledgement;7
2;Contents;8
3;1 Introduction;10
4;2 Protective Thermal Barrier Coatings;13
4.1;2.1 Structure of TBCs;14
4.2;2.2 Development and Application of New Coating Materials;15
4.3;2.3 Conclusions;18
4.4;References;18
5;3 Thermal Loads;20
5.1;3.1 Numerical Methods—Application of Finite Elements Method (FEM) [1, 2];20
5.2;3.2 Deformation and Stress in Structural Elements, Caused by Thermal Loads [1, 2];25
5.3;3.3 Numerical Analysis of Temperature Fields in Critical Elements of Turbo-Engines by CFD (Computational Fluid Dynamics) with Application of FLUENT Program;27
5.4;3.4 Conclusions;31
5.5;References;31
6;4 Mechanical Loads;32
6.1;4.1 Preparation of Model for Simulation;32
6.2;4.2 Analysis of Results;36
6.3;4.3 Blade Vibrations Resonance;37
6.4;4.4 Conclusions;42
6.5;Reference;42
7;5 Environmental Loads;43
7.1;5.1 Corrosion;43
7.2;5.2 Erosion;45
7.3;5.3 Thermally Growth Oxide (TGO) Layer Growth;46
7.4;5.4 Author’s Own Tests of Moving Blade Surface, Including Chemical Analysis;47
7.5;5.5 Conclusions;49
7.6;References;50
8;6 State of Arts in Experimental Testing of TBCs Systems—Literature Analysis;51
8.1;6.1 Review and Analysis of Currently Utilised Tests;51
8.2;6.2 Conclusions;69
8.3;References;69
9;7 Proposed Experimental Investigations of TBCs Systems;72
9.1;7.1 Sample Ageing;72
9.2;7.2 Uniaxial Stretching of Dumbbell Samples with TBC Layers—Author’s Own Tests;73
9.2.1;7.2.1 First Batch of Samples Not Subjected to Ageing;73
9.2.2;7.2.2 Second Batch of Samples Subjected to Ageing;74
9.3;7.3 3-Point Bending of Beam Samples with TBC Layers—Author’s Own Tests;83
9.4;7.4 Conclusions;94
10;8 Numerical Analysis of Cracks Propagation Process in Turbine Blades TBCs Systems Under Thermo-Mechanical Loading Based on Experimental Results;95
10.1;8.1 Formulation of FEM Approach and Brittle Damage of the TBCs System;95
10.1.1;8.1.1 Brittle Damage Model;97
10.1.2;8.1.2 Cohesive Degradation Model;98
10.1.3;8.1.3 Simulation Results;99
10.2;8.2 Application of Submodeling Technique and X-FEM Methods for Detailed Analysis of Cracking Process in Turbine Blades TBCs;102
10.2.1;8.2.1 Submodeling;102
10.2.2;8.2.2 X-FEM Method Basics;103
10.2.3;8.2.3 Preparation of Model for Simulation;104
10.3;8.3 Analysis of Results;105
10.4;8.4 Conclusions;107
10.5;References;107
11;9 Summary;108