Detail publikace

Calculation of the ceramics Weibull parameters

FUIS, V. NÁVRAT, T.

Originální název

Calculation of the ceramics Weibull parameters

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

The paper deals with calculation of the parameters of ceramic material from a set of destruction tests of ceramic heads of total hip joint endoprosthesis. The standard way of calculation of the material parameters consists in carrying out a set of 3 or 4 point bending tests of specimens cut out from parts of the ceramic material to be analysed. In case of ceramic heads, it is not possible to cut out specimens of required dimensions because the heads are too small (if the cut out specimens were smaller than the normalised ones, the material parameters derived from them would exhibit higher strength values than those which the given ceramic material really has). On that score, a special testing jig was made, in which 40 heads were destructed. From the measured values of circumferential strains of the head's external spherical surface under destruction, the state of stress in the head under destruction was established using the final elements method (FEM). From the values obtained, the sought for parameters of the ceramic material were calculated using Weibull's weakest-link theory.

Klíčová slova

Biomaterial parameters, Weibull statistics, ceramics

Autoři

FUIS, V.; NÁVRAT, T.

Rok RIV

2011

Vydáno

26. 10. 2011

Nakladatel

WASET

Místo

Bali

ISSN

2010-376X

Periodikum

World Academy of Science, Engineering and Technology

Ročník

58

Číslo

1

Stát

Indonéská republika

Strany od

642

Strany do

647

Strany počet

6

BibTex

@article{BUT89471,
  author="Vladimir {Fuis} and Tomáš {Návrat}",
  title="Calculation of the ceramics Weibull parameters",
  journal="World Academy of Science, Engineering and Technology",
  year="2011",
  volume="58",
  number="1",
  pages="642--647",
  issn="2010-376X"
}