Journals / Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi / 2010 / Cilt: 25 - Sayı: 3

Subsurface contact stresses in functionally graded coatings loaded by a frictional flat stamp

Fonksiyonel derecelendirilmiş kaplamalarda sürtünmeli rijit zımba etkisiyle oluşan yüzeyaltı temas gerilmeleri

Pages
611–623
Publication Date
2022-10-18
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Effects of punch length, punch location, coefficient of friction and material properties onthe subsurface stresses are investigated.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, a method has been developed in order to calculate the subsurface contact stresses in a functionallygraded coating loaded by a frictional flat stamp on the contact surface.
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Key Findings & Data:Plane elasticity is considered; Poisson’sratio is taken to be constant for the FGM coating and the substrate is taken to be homogeneous.
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Conclusion & Impact:Effects of punch length, punch location, coefficient of friction and material properties onthe subsurface stresses are investigated.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, a method has been developed in order to calculate the subsurface contact stresses in a functionallygraded coating loaded by a frictional flat stamp on the contact surface. Plane elasticity is considered; Poisson’sratio is taken to be constant for the FGM coating and the substrate is taken to be homogeneous. The problem isreduced to a singular integral equation which is solved numerically by means of an expansion collocationtechnique. The series expansions utilized in the solution of the singular integral equation are expressed in termsof Jacobi polynomials. Effects of punch length, punch location, coefficient of friction and material properties onthe subsurface stresses are investigated.

Özet

Bu çalışmada, fonksiyonel derecelendirilmiş malzeme (FDM)’den yapılan bir kaplamada yüzey altında, temasyüzeyindeki düzgün profilli sürtünmeli rijit zımba etkisiyle oluşan, gerilme dağılımlarını hesaplamak için tekilintegral denklemlerine dayalı bir yöntem geliştirilmiştir. Düzlem elastisite durumu ele alınmış ve Poissonoranının, homojen gövde ve FDM kaplama için aynı olduğu kabul edilmiştir. Problem, bir tekil integraldenklemine indirgenmiş ve bu denklem bir açılım – sıralama tekniği kullanılarak sayısal olarak çözülmüştür.Tekil integral denkleminin çözümünde kullanılan seriler Jacobi polinomları kullanılarak ifade edilmiştir. Zımbagenişliği, zımba konumu, sürtünme katsayısı ve malzeme parametrelerinin, kaplama derinliği boyunca oluşangerilme dağılımlarına etkileri incelenmiştir.

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Cite This Article

GÜLER, M. A., APATAY, T., GÜLGEÇ, M., DAĞ, S. (2022). Subsurface contact stresses in functionally graded coatings loaded by a frictional flat stamp. Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi, Cilt: 25 - Sayı: 3, 611–623. https://ajindex.com/articles/523817

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