Výpočet zobecněného součinitele intensity napětí pro trhlinu kolmou na rozhraní dvou anisotropních materiálů

Calculation of the stress intensity factor for crack perpendicular to the interface of two anisotropic materials.

conference paper

Czech

The work deals with a finding of a suitable technique for the calculation of a Generalized Stress Intensity Factor for the case of the crack terminating at the interface of two different anisotropic materials. For solution, a two-state integral method, especially so-called -integral, is used. An assumption for this analysis is a knowledge of eigenvalues and eigenfunctions of the appropriate singular solution. We use a path independence of the two-state integral and the Finite Element Analysis which provides relatively accurate values on integration paths remote enough from the concentrator. For a solution of the singularity exponent the Implicit method is used. This method is also useful for finding of the auxiliary solution which is required in interactive integrals.

The work deals with a finding of a suitable technique for the calculation of a Generalized Stress Intensity Factor for the case of the crack terminating at the interface of two different anisotropic materials. For solution, a two-state integral method, especially so-called -integral, is used. An assumption for this analysis is a knowledge of eigenvalues and eigenfunctions of the appropriate singular solution. We use a path independence of the two-state integral and the Finite Element Analysis which provides relatively accurate values on integration paths remote enough from the concentrator. For a solution of the singularity exponent the Implicit method is used. This method is also useful for finding of the auxiliary solution which is required in interactive integrals.

generalized stress intensity factor, two-state integral, anisotropic material

ŠEVEČEK, O.; KOTOUL, M.; PROFANT, T.

2006

3. 4. 2006

Srní

80-7043-441-4

Aplikovaná mechanika 2006

1

93

94

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