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W pracy przedstawiono różne sformułowania metody elementów brzegowych (MEB) w analizie materiałów z wtrąceniami. Opracowane programy komputerowe wykorzystano do wyznaczenia zastępczych własności materiałowych kompozytów poprzez analizę komórek jednostkowych lub reprezentatywnych elementów objętościowych. Badano wpływ udziału objętościowego wtrąceń na własności zastępcze materiałów.
In this work the time-domain boundary element method (BEM) is applied to simulate the dynamic crack growth. The fast fracture is modeled by adding new boundary elements at the crack tip. The direction of crack growth is perpendicular to the direction of maximum circumferencial stress. The method is used to analyze a mixed-mode fracture in a three-point bend specimen. The dynamic stress intensity factors...
The work shows methods of modeling cracks by the boundary element method (BEM). The application of the BEM to dynamie fraeture mechanies is demonstrated by using the time-domain formulation. The development of the approach, boundary integral equations and the numerical formulation is presented. The methods of computing dynamie stress intensity factors, modeling of crack growth with a variable velocity...
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