Detail publikačního výsledku

Calculation of K-factor and T-stress for crack at anisotropic bimaterials

KOTOUL, M.; PROFANT, T.; ŠEVEČEK, O.

Originální název

Calculation of K-factor and T-stress for crack at anisotropic bimaterials

Anglický název

Calculation of K-factor and T-stress for crack at anisotropic bimaterials

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The problem of a crack terminating perpendicular to a bimaterial interface is analyzed for the most general case of elastic anisotropy. The crack is modelled by means of continuous distribution of dislocations, which is assumed to be singular at the crack tip. A system of simultaneous functional equations is obtained that enables to find the singularity exponent . The reciprocal theorem ( - integral) is used to compute the generalized stress intensity factor through the remote stress and displacement field for a particular specimen geometry and boundary conditions using FEM. The dislocation arrays technique is further used for the T-stress determination. First, all but the singular part of the desired fundamental dislocation solution is constructed using FEM and used as the regular part of the kernel of the singular integral equation. The integral equation is solved for the dislocation density that allows finding the T-stress.

Anglický abstrakt

The problem of a crack terminating perpendicular to a bimaterial interface is analyzed for the most general case of elastic anisotropy. The crack is modelled by means of continuous distribution of dislocations, which is assumed to be singular at the crack tip. A system of simultaneous functional equations is obtained that enables to find the singularity exponent . The reciprocal theorem ( - integral) is used to compute the generalized stress intensity factor through the remote stress and displacement field for a particular specimen geometry and boundary conditions using FEM. The dislocation arrays technique is further used for the T-stress determination. First, all but the singular part of the desired fundamental dislocation solution is constructed using FEM and used as the regular part of the kernel of the singular integral equation. The integral equation is solved for the dislocation density that allows finding the T-stress.

Klíčová slova

crack, bimaterial interface, anisotropy, reciprocal theorem, T-stress

Klíčová slova v angličtině

crack, bimaterial interface, anisotropy, reciprocal theorem, T-stress

Autoři

KOTOUL, M.; PROFANT, T.; ŠEVEČEK, O.

Vydáno

01.01.2006

Nakladatel

Springer

Místo

Holandsko

ISBN

1-4020-4971-4

Kniha

Fracture of Nano and Engineering Materials and Structures

Strany od

879

Strany do

879

Strany počet

9

BibTex

@inproceedings{BUT19376,
  author="Michal {Kotoul} and Tomáš {Profant} and Oldřich {Ševeček}",
  title="Calculation of K-factor and T-stress for crack at anisotropic bimaterials",
  booktitle="Fracture of Nano and Engineering Materials and Structures",
  year="2006",
  pages="879--879",
  publisher="Springer",
  address="Holandsko",
  isbn="1-4020-4971-4"
}