Detail publikace

An evaluation of the stress intensity factor in functionally graded materials

ŠEVČÍK, M. HUTAŘ, P. NÁHLÍK, L. KNÉSL, Z.

Originální název

An evaluation of the stress intensity factor in functionally graded materials

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

Functionally graded materials (FGM) are characterised by variations in their material properties in terms of their geometry. They are often used as a coating for interfacial zones to protect the basic material against thermally or mechanically induced stresses. FGM can be also produced by technological process for, example butt-welding of polymer pipes. This work is focused on a numerical estimation of the stress intensity factor for cracks propagat-ing through FGM structure. The main difficulty of the FE model creation is the accurate description of continual changes in mechanical properties. An analysis of the FGM layer bonded from both sides with different homoge-nous materials was performed to study the influence of material property distribution. The thickness effect of the FGM layer is also discussed. All analyses are simulated as a 2D problem of an edge crack specimen. In this pa-per, the above effects are quantified and conclusions concerning the applicability of the proposed model are dis-cussed.

Klíčová slova

functionally graded material; linear elastic fracture mechanics; discretization methodology; power-law material change

Autoři

ŠEVČÍK, M.; HUTAŘ, P.; NÁHLÍK, L.; KNÉSL, Z.

Rok RIV

2009

Vydáno

28. 12. 2009

Nakladatel

University of West Bohemia

Místo

Plzeň

ISSN

1802-680X

Periodikum

Applied andComputational Mechanics

Ročník

3

Číslo

2

Stát

Česká republika

Strany od

401

Strany do

410

Strany počet

10

BibTex

@article{BUT47439,
  author="Martin {Ševčík} and Pavel {Hutař} and Luboš {Náhlík} and Zdeněk {Knésl}",
  title="An evaluation of the stress intensity factor in functionally graded materials",
  journal="Applied andComputational Mechanics",
  year="2009",
  volume="3",
  number="2",
  pages="401--410",
  issn="1802-680X"
}