Adhesional Contact between Rigid Sphere and Elastic Plane Covered with Thin Liquid Film Considering Contact-Angle Hysteresis

This paper proposes a contact model between a rigid sphere and an elastic plane covered with a thin liquid film. The elastic contact is determined by Johnson–Kendall–Roberts theory, which deals with the energy equilibrium of elastic and interfacial energies. In elastic contact under presence of thin...

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Autores principales:	Yoji Iguchi, Dooyoung Baek, Satoshi Momozono, Pasomphone Hemthavy, Shigeki Saito, Kunio Takahashi
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2020
Materias:	adhesion contact analytical model capillary force liquid contact angle sphere elastic half space Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/316f09844e7049289914ade2bfbd2234
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spelling	oai:doaj.org-article:316f09844e7049289914ade2bfbd22342021-11-05T09:12:03ZAdhesional Contact between Rigid Sphere and Elastic Plane Covered with Thin Liquid Film Considering Contact-Angle Hysteresis1881-219810.2474/trol.15.1https://doaj.org/article/316f09844e7049289914ade2bfbd22342020-01-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/15/1/15_1/_pdf/-char/enhttps://doaj.org/toc/1881-2198This paper proposes a contact model between a rigid sphere and an elastic plane covered with a thin liquid film. The elastic contact is determined by Johnson–Kendall–Roberts theory, which deals with the energy equilibrium of elastic and interfacial energies. In elastic contact under presence of thin liquid film, the energy needed to separate the two bodies is defined as the summation of the interfacial energy among the sphere, liquid, and plane. Capillary force affects the two bodies because a liquid bridge is formed between them. Shape of the liquid bridge, assumed by the Clark’s toroidal approximation, determines the capillary force. The hysteresis of the liquid contact angles and that of the liquid volume between loading and unloading processes are considered. In loading process, the liquid film is squeezed out from the contact area and accumulates at the contact edge with increasing the liquid contact angles. In unloading process, the accumulated liquid is dragged to the contact edge, and the contact angles decrease. An irreversible force curve is obtained from these two hystereses, and the effect of liquid bridge is discussed based on the calculated results. In addition, the adhesion-hysteresis mechanisms caused by the capillary force are discussed.Yoji IguchiDooyoung BaekSatoshi MomozonoPasomphone HemthavyShigeki SaitoKunio TakahashiJapanese Society of Tribologistsarticleadhesion contactanalytical modelcapillary forceliquid contact anglesphereelastic half spacePhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 15, Iss 1, Pp 1-8 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	adhesion contact analytical model capillary force liquid contact angle sphere elastic half space Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	adhesion contact analytical model capillary force liquid contact angle sphere elastic half space Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Yoji Iguchi Dooyoung Baek Satoshi Momozono Pasomphone Hemthavy Shigeki Saito Kunio Takahashi Adhesional Contact between Rigid Sphere and Elastic Plane Covered with Thin Liquid Film Considering Contact-Angle Hysteresis
description	This paper proposes a contact model between a rigid sphere and an elastic plane covered with a thin liquid film. The elastic contact is determined by Johnson–Kendall–Roberts theory, which deals with the energy equilibrium of elastic and interfacial energies. In elastic contact under presence of thin liquid film, the energy needed to separate the two bodies is defined as the summation of the interfacial energy among the sphere, liquid, and plane. Capillary force affects the two bodies because a liquid bridge is formed between them. Shape of the liquid bridge, assumed by the Clark’s toroidal approximation, determines the capillary force. The hysteresis of the liquid contact angles and that of the liquid volume between loading and unloading processes are considered. In loading process, the liquid film is squeezed out from the contact area and accumulates at the contact edge with increasing the liquid contact angles. In unloading process, the accumulated liquid is dragged to the contact edge, and the contact angles decrease. An irreversible force curve is obtained from these two hystereses, and the effect of liquid bridge is discussed based on the calculated results. In addition, the adhesion-hysteresis mechanisms caused by the capillary force are discussed.
format	article
author	Yoji Iguchi Dooyoung Baek Satoshi Momozono Pasomphone Hemthavy Shigeki Saito Kunio Takahashi
author_facet	Yoji Iguchi Dooyoung Baek Satoshi Momozono Pasomphone Hemthavy Shigeki Saito Kunio Takahashi
author_sort	Yoji Iguchi
title	Adhesional Contact between Rigid Sphere and Elastic Plane Covered with Thin Liquid Film Considering Contact-Angle Hysteresis
title_short	Adhesional Contact between Rigid Sphere and Elastic Plane Covered with Thin Liquid Film Considering Contact-Angle Hysteresis
title_full	Adhesional Contact between Rigid Sphere and Elastic Plane Covered with Thin Liquid Film Considering Contact-Angle Hysteresis
title_fullStr	Adhesional Contact between Rigid Sphere and Elastic Plane Covered with Thin Liquid Film Considering Contact-Angle Hysteresis
title_full_unstemmed	Adhesional Contact between Rigid Sphere and Elastic Plane Covered with Thin Liquid Film Considering Contact-Angle Hysteresis
title_sort	adhesional contact between rigid sphere and elastic plane covered with thin liquid film considering contact-angle hysteresis
publisher	Japanese Society of Tribologists
publishDate	2020
url	https://doaj.org/article/316f09844e7049289914ade2bfbd2234
work_keys_str_mv	AT yojiiguchi adhesionalcontactbetweenrigidsphereandelasticplanecoveredwiththinliquidfilmconsideringcontactanglehysteresis AT dooyoungbaek adhesionalcontactbetweenrigidsphereandelasticplanecoveredwiththinliquidfilmconsideringcontactanglehysteresis AT satoshimomozono adhesionalcontactbetweenrigidsphereandelasticplanecoveredwiththinliquidfilmconsideringcontactanglehysteresis AT pasomphonehemthavy adhesionalcontactbetweenrigidsphereandelasticplanecoveredwiththinliquidfilmconsideringcontactanglehysteresis AT shigekisaito adhesionalcontactbetweenrigidsphereandelasticplanecoveredwiththinliquidfilmconsideringcontactanglehysteresis AT kuniotakahashi adhesionalcontactbetweenrigidsphereandelasticplanecoveredwiththinliquidfilmconsideringcontactanglehysteresis
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Adhesional Contact between Rigid Sphere and Elastic Plane Covered with Thin Liquid Film Considering Contact-Angle Hysteresis

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