Enhancement of strain tolerance of functionally graded LaTi2Al9O19 thermal barrier coating through ultra-short pulse based laser texturing

Dhineshkumar, S.R.; Duraiselvam, Muthukannan; Natarajan, S.; Panwar, Sanjay; Jena, Trilochan; Khan, Muhammed Anaz

doi:10.1016/j.surfcoat.2016.07.018

Cited by 34 publications

(11 citation statements)

References 18 publications

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“…Quasi 2D and 3D SDT were used by Akavci and Tanrikulu [154] for the analysis of free vibration of FG plates. It is reported that 8 Advances in Materials Science and Engineering transverse normal strain plays a significant role in a free vibration of FGM plates as that of transverse shear strain. Chen et al [115] applied the meshless local natural neighbor interpolation method to study free vibration of FG plates.…”

Section: Fgm Platesmentioning

confidence: 99%

“…e number of research publications has increased significantly in past two decades [5]. FGMs replace the sharp transition of properties with smooth and continuous varying properties of the material such as physical, chemical, and mechanical like Young's Modulus, Poisson's ratio, Shear Modulus, density, and coefficient of thermal expansion in a desired spatial direction [6][7][8][9] (Figure 1). e gradual changes in volume fraction of constituent and nonidentical structure at preferred direction give continuous graded properties like thermal conductivity, corrosion resistivity, specific heat, hardness, and stiffness ratio [11].…”

Section: Introductionmentioning

confidence: 99%

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Functionally Graded Materials: An Overview of Stability, Buckling, and Free Vibration Analysis

Zhang

Khan

Guo

et al. 2019

Advances in Materials Science and Engineering

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Functionally graded materials (FGMs) are novel materials whose properties change gradually with respect to their dimensions. It is the advanced development of formerly used composite materials and consists of two or more materials in order to achieve the desired properties according to the application where an FGM is used. FGMs have obtained a great attention of researchers in the past decade due to their graded properties at every single point in various dimensions. The properties of an FGM are not identical to the materials that constitute it. This paper aims to present an overview of the existing literature on stability, buckling, and free vibration analysis of FGM carried out by numerous authors in the past decade. Moreover, the analyses of mathematical models adopted for the aforementioned analyses are not the core purpose of this paper. At the end, future work is also suggested in this review paper.

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Section: Fgm Platesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Functionally Graded Materials: An Overview of Stability, Buckling, and Free Vibration Analysis

Zhang

Khan

Guo

et al. 2019

Advances in Materials Science and Engineering

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“…Fonksiyonel derecelendirilmiş malzemeler, hafif, yüksek mukavemetli, ısıl direnç özellikli, aşınmaya veya korozyona karşı dayanımlı olmaları nedeni ile uzay, havacılık, endüstriyel malzemeler, biyoloji, enerji ve savunma sanayiinde kullanılmaktadır [1]. Bunlara örnek olarak, otomotiv turboşarjlar, termal bariyer kaplamalar, katı oksit yakıt hücreleri ve biyomedikal aletler verilebilir [2][3][4][5][6]. Ayrıca helisel geometri, nano ölçekten makro ölçeğe kadar mühendislik tasarımında yaygın bir kullanım alanına sahiptir.…”

Section: Introductionunclassified

Eksenel Fonksiyonel Derecelendirilmiş Helislerin Karışık Sonlu Eleman Yöntemi ile Serbest Titreşim Analizi

Ermis¹

2020

Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

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Bu çalışmanın amacı, eksenel fonksiyonel derecelendirilmiş (EFD) kesin geometri tarifi üzerinden elde edilen dairesel olmayan (fıçı, hiperboloidal ve eliptik) helislerin doğal frekanslarını incelemektir. Timoshenko çubuk kuramı üstünden geliştirilen karışık sonlu eleman yönteminde kesit çarpılması da gözetilerek serbest titreşim analizi yapılmıştır. İki düğüm noktalı eğrisel sonlu elemanın her düğüm noktasındaki 12 değişken; üçü yer değiştirmeler, üçü kesit dönmeleri, üçü kuvvetler ikisi eğilme biri burulma momentleridir. Eksenel FD dairesel olmayan geometriye sahip ve kesin geometri üzerinden tariflenen helislerin serbest titreşim analizi farklı sınır koşulları ve malzeme gradyenti değişimleri üzerinden detaylıca tartışılmıştır. Yöntem literatür ya da ANSYS ile doğrulandıktan sonra literatür için tamamen özgün problemler çözülmüştür.The objective of this study is to investigate the natural frequencies of axially functionally graded (AFG) non-circular (barrel, hyperboloidal and elliptical) helices based on exact geometry. Free vibration analysis is performed using the mixed finite element method based on Timoshenko beam theory by considering cross-sectional warping effect. A two-noded curved finite element involves 12 field variables at each node, three displacements, three cross-sectional rotations, three forces, and three moments. The free vibration analysis of axially FG exact non-circular helical geometries is discussed in detail over different boundary conditions and material gradient indexes. After verifying the algorithm with the problems available in the literature and ANSYS software, original problems for the literature are solved.

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“…Bellur-Ramaswamy et al [3] developed an algorithm to optimize continuous quench process parameters to produce functionally graded aluminum alloy extrudes. The gradual changes in volume fraction of the constituents and non-homogenous structure provides continuous graded macroscopic properties, such as hardness, wear resistance, corrosion resistivity, thermal conductivity, specific heat and mass density that are critical for thermal barrier coatings (TBCs) as well as thermal protection of the re-entry capsule, furnace liners, body armour, piezoelectric actuators and electromagnetic sensors [4][5][6][7]. Therefore, there have been many studies related with the thermal properties of these materials and their interaction with their structural behavior.…”

Section: Introductionmentioning

confidence: 99%

Computational Techniques for The Evaluation of Inhomogeneity Parameters on Transient Conduction in Functionally Graded Layers

Balcı

Sabuncuoğlu

2019

International Journal of Engineering and Applied Sciences

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Transient thermal response of a functionally graded material (FGM) layer is considered and individual effects of inhomogeneity parameters on temperature distribution are examined. Transient conduction equation has variable coefficients controlling conductivity, mass density and specific heat capacitance due to the material property variation along the thickness of the graded layer. In order to solve the time dependent conduction equation for the unknown interior temperatures, computational methods are employed based on finite difference and finite element methods. Governing partial differential equation is discretized in space and time grids and computer codes are developed to implement explicit and implicit schemes. Results of explicit and implicit schemes are compared with those found by finite element method. A very good agreement is achieved for the applied boundary and initial conditions. Parametric study reveals the individual influences of various inhomogeneity parameters of FGM upon time dependent temperature distribution of a functionally graded layer. The results of the direct comparison study indicate that inhomogeneity parameters for specific heat and mass density have greater influence on temperature distribution than that for thermal conductivity.

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Enhancement of strain tolerance of functionally graded LaTi2Al9O19 thermal barrier coating through ultra-short pulse based laser texturing

Cited by 34 publications

References 18 publications

Functionally Graded Materials: An Overview of Stability, Buckling, and Free Vibration Analysis

Functionally Graded Materials: An Overview of Stability, Buckling, and Free Vibration Analysis

Eksenel Fonksiyonel Derecelendirilmiş Helislerin Karışık Sonlu Eleman Yöntemi ile Serbest Titreşim Analizi

Computational Techniques for The Evaluation of Inhomogeneity Parameters on Transient Conduction in Functionally Graded Layers

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