Publication detail

A design influence of the mechanical compliance railroad wheel to the fracture behaviour

NAVRÁTIL, P. JANÍČEK, P. BRABENEC, L. MATUG, M. MARCIÁN, P.

Czech title

Vliv poddajnosti železničního kola na jeho lomově-mechanické chování

English title

A design influence of the mechanical compliance railroad wheel to the fracture behaviour

Type

journal article - other

Language

en

Original abstract

A fracture mechanics approach is used to determinate crack behaviour in a railway wheel which is working under different operating conditions with consideration of different types of railway wheel discs. Reliability of the railway wheel is related to a material failure. This paper is focused on failure of the material which is connected with violation consistency of the wheel material. The fracture mechanic approach is applied with consideration of influence of mechanical compliance. The topology optimization is used to define the shape of one disc type. Obtained results show fracture behaviour and the mechanical compliance of used railway wheel discs. From these results, comparison of separated railway wheel discs is obtained.

Czech abstract

Přístup lomové mechaniky je použit pro určení chování trhliny v železničním kole, které pracuje při různých provozních podmínkách s uvážením různých typů tvarů disků. Práce je zaměřena na řešení lomově-mechanických vlastností v závislosti na různé poddajnosti disků kola. Pro určení tvarů siku kola byla také použita topologická optimalizace. Dané výsledky ukazují dávají dohromady závislost lomového chování trhliny a poddajnosti disků.

English abstract

A fracture mechanics approach is used to determinate crack behaviour in a railway wheel which is working under different operating conditions with consideration of different types of railway wheel discs. Reliability of the railway wheel is related to a material failure. This paper is focused on failure of the material which is connected with violation consistency of the wheel material. The fracture mechanic approach is applied with consideration of influence of mechanical compliance. The topology optimization is used to define the shape of one disc type. Obtained results show fracture behaviour and the mechanical compliance of used railway wheel discs. From these results, comparison of separated railway wheel discs is obtained.

Keywords in Czech

lomová mechanika, faktor intenzity napětí, poddajnost, železniční kolo, disk železničního kola, topologická optimalizace, zatěžování v mixed-modu

Keywords in English

Fracture mechanics, stress intensity factor, mechanical compliance, railroad wheel, railroad wheel disc, topology optimization, Mixed-mode loading

RIV year

2012

Released

07.03.2012

Location

Plzeň

ISSN

1802-680X

Volume

2011

Number

5

Pages from–to

197–204

Pages count

8

BIBTEX


@article{BUT75564,
  author="Petr {Navrátil} and Přemysl {Janíček} and Ladislav {Brabenec} and Michal {Matug} and Petr {Marcián},
  title="A design influence of the mechanical compliance railroad wheel to the fracture behaviour",
  year="2012",
  volume="2011",
  number="5",
  month="March",
  pages="197--204",
  address="Plzeň",
  issn="1802-680X"
}