Detail publikace

THE INFLUENCE OF CONTACT REGION ON PROBABILITY OF CERAMICS FRACTURE

KOVÁŘ, J.

Anglický název

THE INFLUENCE OF CONTACT REGION ON PROBABILITY OF CERAMICS FRACTURE

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

en

Originální abstrakt

This paper focuses on assessment of probability of ceramic component fracture. The component is loaded by four point bending with different boundary conditions. The Weibull's weakest link theory, which includes the effect of first principal stress only, was chosen for calculation of probability of fracture. The stresses for calculations were evaluated numerically by finite element method. The component was discretizated by plane elements and constraints were considered in two variants. In the first variant, the constraints and loads are considered at the centerline of the rod (in accordance with rod theory). The second variant considers constraints and loads on the outer surface of the body. The contact between body and constraint (support) is considered in this variant. The influence of the radius of support on the value of probability of body fracture and the width of contact region is analyzed.

Anglický abstrakt

This paper focuses on assessment of probability of ceramic component fracture. The component is loaded by four point bending with different boundary conditions. The Weibull's weakest link theory, which includes the effect of first principal stress only, was chosen for calculation of probability of fracture. The stresses for calculations were evaluated numerically by finite element method. The component was discretizated by plane elements and constraints were considered in two variants. In the first variant, the constraints and loads are considered at the centerline of the rod (in accordance with rod theory). The second variant considers constraints and loads on the outer surface of the body. The contact between body and constraint (support) is considered in this variant. The influence of the radius of support on the value of probability of body fracture and the width of contact region is analyzed.

Klíčová slova anglicky

Weibull´s weakest link theory, Contact, Probability of fracture, Hertz´s theory, Ceramic

Vydáno

15.05.2017

Nakladatel

Vysoké učení technické v Brně

Místo

Brno

ISBN

978-80-214-5497-2

ISSN

1805-8248

Kniha

Engineering Mechanics 2017

Ročník

23

Strany od–do

510–513

Počet stran

4

BIBTEX


@inproceedings{BUT149911,
  author="Jaroslav {Kovář} and Vladimír {Fuis},
  title="THE INFLUENCE OF CONTACT REGION ON PROBABILITY OF CERAMICS FRACTURE",
  booktitle="Engineering Mechanics 2017",
  year="2017",
  volume="23",
  month="May",
  pages="510--513",
  publisher="Vysoké učení technické v Brně",
  address="Brno",
  isbn="978-80-214-5497-2",
  issn="1805-8248"
}