Numerical analysis of fracture in ceramic coatings subjected to thermal loading

Mimaroğlu, A.; Yenihayat, O.F.; Avci, E.

doi:10.1016/s0261-3069(97)00023-x

Cited by 9 publications

(2 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finite element code in ANSYS has been employed to analysis fracture in ceramic coatings subjected to thermal loading by Mimaroglu at all. [17]. Hypothetical material properties have been considered as material data for coupled (thermal and structure) finite element analysis and evaluated the stress intensity factors in different coatings.…”

Section: Introductionmentioning

confidence: 99%

Thermal Analysis of a Zirconium Dioxide Coated Aluminum Alloy Piston

Özsoy

Tikiz

Pehlivan

2018

International Journal of Computational and Experimental Science and Engineering

View full text Add to dashboard Cite

KeywordsThermal analysis Finite element method Thermal barrier coating Aluminum alloy piston Abstract:Performance and operating costs are the most important factors in internal combustion engines. It is one of the most commonly used methods to coat pistons with advanced technological ceramic materials in order to improve performance and fatigue life in internal combustion engines. In this study, changes in temperature and heat flux were investigated in various thickness coatings made on a 2500 cc turbo diesel engine piston. As bonding coat, NiCrAl was used in a thickness of 0.2 mm, while ZrO 2 (zirconium dioxide) was used in thicknesses of 0.2-0.4-0.6 and 0.8 mm as thermal barrier coating material. The piston was modeled in PTC Creo parametric software and then transferred to ANSYS Workbench environment to create a mathematical model. Engineering calculations were also done using the finite element method. After the calculation, the temperatures at the depth of 5 mm from the combustion chamber upper surface, the binder layer upper surface, the thermal coating upper surface and the combustion chamber upper surface were compared. As a result, it was observed that the combustion chamber and the section at the depth of 5 mm from the combustion chamber had a temperature decrease of 13%.

show abstract

Section: Introductionmentioning

confidence: 99%

Thermal Analysis of a Zirconium Dioxide Coated Aluminum Alloy Piston

Özsoy

Tikiz

Pehlivan

2018

International Journal of Computational and Experimental Science and Engineering

View full text Add to dashboard Cite

show abstract

“…The strength of the bonded system is governed by a number of variables: the thermal and elastic mismatch; the relative substrate/coating thickness; thickness of interlayer; the flaw distributions in the ceramic and at the interface, and so on. In most cases the failure appears to be close to the interface between the ceramic and the metal [1,2]. One of the successful efforts in improving the TBC durability has been to produce a coating which has more capability to accommodate the thermal strain by increasing the TBC tensile in-plane compliance, thus reducing the crack driving force developed by thermally induced strain.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis on Surface Fractures in Two-Layered Materials Subjected to Thermal Loading

Tang

Xing

et al. 2007

KEM

View full text Add to dashboard Cite

With the knowledge of heterogeneous characteristics of thermal barrier coating materials at mesoscopic level, a coupled thermo-mechanical-damage (TMD Model) model was introduced and used to numerically quantify the thermal stresses and crack development of in thermal barrier coatings (TBCs) composite subjected to decreased temperatures. The effect of different surface precrack morphologies, such as precrack length and precrack density, on an interface crack subjected to thermal loading caused by a temperature change is presented. It provides us with a more sensible physical intuition and a more accurate mathematical for optimizing the design and the processing of ceramic coatings subjected to the coupled thermal-mechanical loading.

show abstract

Finite element model for thermal analysis of ceramic heat exchanger tube under axial non-uniform convective heat transfer coefficient

İslamoğlu

2004

Materials & Design

View full text Add to dashboard Cite

Numerical analysis of fracture in ceramic coatings subjected to thermal loading

Cited by 9 publications

References 16 publications

Thermal Analysis of a Zirconium Dioxide Coated Aluminum Alloy Piston

Thermal Analysis of a Zirconium Dioxide Coated Aluminum Alloy Piston

Numerical Analysis on Surface Fractures in Two-Layered Materials Subjected to Thermal Loading

Finite element model for thermal analysis of ceramic heat exchanger tube under axial non-uniform convective heat transfer coefficient

Contact Info

Product

Resources

About