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Numerical analysis of 3D unilateral quasi-static contact: effect of coating thickness and mechanical properties / Andel Djamai ... [et al.]

In this study, a numerical model for unilateral quasi-static contact between a rigid sphere and an elastic coating has been developed. The contact problem was solved using a numerical procedure based on the FFT technique, considering various coatings with different thicknesses and mechanical propert...

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Main Authors: Djamai, Andel, Zaidi, Hamid, Bekhouche, Djamel, Bouchoucha, Ali
Format: Article
Language:English
Published: UiTM Press 2024
Subjects:
Surface effects and tests
Online Access:https://ir.uitm.edu.my/id/eprint/100870/1/100870.pdf
https://ir.uitm.edu.my/id/eprint/100870/
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spelling my.uitm.ir.1008702024-09-03T22:29:35Z https://ir.uitm.edu.my/id/eprint/100870/ Numerical analysis of 3D unilateral quasi-static contact: effect of coating thickness and mechanical properties / Andel Djamai ... [et al.] jmeche Djamai, Andel Zaidi, Hamid Bekhouche, Djamel Bouchoucha, Ali Surface effects and tests In this study, a numerical model for unilateral quasi-static contact between a rigid sphere and an elastic coating has been developed. The contact problem was solved using a numerical procedure based on the FFT technique, considering various coatings with different thicknesses and mechanical properties, implemented through a Matlab code. The model calculates the contact surface deformation and pressure field through a double iteration process. The first iteration solves the contact problem for a given indenter penetration, while the second iteration refines this penetration by minimizing the difference between the fixed and calculated loads. To achieve this, influence coefficients are derived from the elasto-static equations using the Papkovich-Neuber potentials. The study discusses the influence of coating thickness and friction coefficient value on the tribological behavior of the coating. The results indicate that contact pressure increases (ranging from 1.9 to 2.5) as the coating becomes thicker or more rigid (0.02 mm to 0.2 mm). Additionally, the tribological behavior of the coated surface is affected by the coating's thickness, hardness, and friction coefficient value. Importantly, this model demonstrates versatility by being applicable to both smooth and rough surfaces. UiTM Press 2024-09 Article PeerReviewed text en https://ir.uitm.edu.my/id/eprint/100870/1/100870.pdf Numerical analysis of 3D unilateral quasi-static contact: effect of coating thickness and mechanical properties / Andel Djamai ... [et al.]. (2024) Journal of Mechanical Engineering (JMechE) <https://ir.uitm.edu.my/view/publication/Journal_of_Mechanical_Engineering_=28JMechE=29/>, 21 (3): 1. pp. 1-28. ISSN 1823-5514 ; 2550-164X
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Surface effects and tests
spellingShingle Surface effects and tests
Djamai, Andel
Zaidi, Hamid
Bekhouche, Djamel
Bouchoucha, Ali
Numerical analysis of 3D unilateral quasi-static contact: effect of coating thickness and mechanical properties / Andel Djamai ... [et al.]
description In this study, a numerical model for unilateral quasi-static contact between a rigid sphere and an elastic coating has been developed. The contact problem was solved using a numerical procedure based on the FFT technique, considering various coatings with different thicknesses and mechanical properties, implemented through a Matlab code. The model calculates the contact surface deformation and pressure field through a double iteration process. The first iteration solves the contact problem for a given indenter penetration, while the second iteration refines this penetration by minimizing the difference between the fixed and calculated loads. To achieve this, influence coefficients are derived from the elasto-static equations using the Papkovich-Neuber potentials. The study discusses the influence of coating thickness and friction coefficient value on the tribological behavior of the coating. The results indicate that contact pressure increases (ranging from 1.9 to 2.5) as the coating becomes thicker or more rigid (0.02 mm to 0.2 mm). Additionally, the tribological behavior of the coated surface is affected by the coating's thickness, hardness, and friction coefficient value. Importantly, this model demonstrates versatility by being applicable to both smooth and rough surfaces.
format Article
author Djamai, Andel
Zaidi, Hamid
Bekhouche, Djamel
Bouchoucha, Ali
author_facet Djamai, Andel
Zaidi, Hamid
Bekhouche, Djamel
Bouchoucha, Ali
author_sort Djamai, Andel
title Numerical analysis of 3D unilateral quasi-static contact: effect of coating thickness and mechanical properties / Andel Djamai ... [et al.]
title_short Numerical analysis of 3D unilateral quasi-static contact: effect of coating thickness and mechanical properties / Andel Djamai ... [et al.]
title_full Numerical analysis of 3D unilateral quasi-static contact: effect of coating thickness and mechanical properties / Andel Djamai ... [et al.]
title_fullStr Numerical analysis of 3D unilateral quasi-static contact: effect of coating thickness and mechanical properties / Andel Djamai ... [et al.]
title_full_unstemmed Numerical analysis of 3D unilateral quasi-static contact: effect of coating thickness and mechanical properties / Andel Djamai ... [et al.]
title_sort numerical analysis of 3d unilateral quasi-static contact: effect of coating thickness and mechanical properties / andel djamai ... [et al.]
publisher UiTM Press
publishDate 2024
url https://ir.uitm.edu.my/id/eprint/100870/1/100870.pdf
https://ir.uitm.edu.my/id/eprint/100870/
_version_ 1811598180942348288
score 13.211869

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