Detail publikace

The role of the glass transition for EHL minimum film thickness

HABCHI, W. ŠPERKA, P. BAIR, S.

Originální název

The role of the glass transition for EHL minimum film thickness

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

When the glass transition is considered in an EHL traction analysis, shear-thinning is not sufficient to explain experiments because there is no liquid behavior to shear-thin and a limiting stress is required. The usual approach of ignoring the glass transition and the associated previtreous pressure dependence has concealed the role of vitrification in establishing the minimum film thickness in real contacts. For the first time, the glass transition is considered in an elastohydrodynamic lubrication simulation along with the glass compressibility. Vitrification and the previtreous pressure response are necessary to predict the minimum film thickness in a point contact. Future numerical simulations should include the glass transition, both for the film thickness and, of course, friction.

Klíčová slova

EHL;Film thickness;Glass transition;Pressure-viscosity

Autoři

HABCHI, W.; ŠPERKA, P.; BAIR, S.

Vydáno

1. 12. 2023

Nakladatel

Elsevier

Místo

OXFORD, ENGLAND

ISSN

0301-679X

Periodikum

Tribology International

Ročník

190

Číslo

12

Stát

Spojené království Velké Británie a Severního Irska

Strany počet

8

URL

https://www.sciencedirect.com/science/article/pii/S0301679X23008496

BibTex

@article{BUT187578,
  author="Wassim {Habchi} and Petr {Šperka} and Scott {Bair}",
  title="The role of the glass transition for EHL minimum film thickness",
  journal="Tribology International",
  year="2023",
  volume="190",
  number="12",
  pages="8",
  doi="10.1016/j.triboint.2023.109061",
  issn="0301-679X",
  url="https://www.sciencedirect.com/science/article/pii/S0301679X23008496"
}