Posouzení bi-materiálového vrubu se dvěma singularitami

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Assessment of a bi-material wedge with two stress singularities

Popis výsledku v původním jazyce

Joints of different materials have many applications in structural engineering and microelectronics. In the present contribution the joint is modeled as a bi-material wedge. The singular character of the stress field near the wedge tip is investigated. Depending on the geometry of the wedge and the selection of the materials, the stress field can have two singularities. Correspondingly the singular stress field is expressed as a sum of two singular terms with different stress singularity exponents. It is shown that to study the problem of a crack onset at the wedge, both two terms have to be taken into account. First, the angle of the direction of potential crack initiation is determined. Then a criterion for crack nucleation and propagation in the selected direction is formulated

Název v anglickém jazyce

Assessment of a bi-material wedge with two stress singularities

Popis výsledku anglicky

Joints of different materials have many applications in structural engineering and microelectronics. In the present contribution the joint is modeled as a bi-material wedge. The singular character of the stress field near the wedge tip is investigated. Depending on the geometry of the wedge and the selection of the materials, the stress field can have two singularities. Correspondingly the singular stress field is expressed as a sum of two singular terms with different stress singularity exponents. It is shown that to study the problem of a crack onset at the wedge, both two terms have to be taken into account. First, the angle of the direction of potential crack initiation is determined. Then a criterion for crack nucleation and propagation in the selected direction is formulated

Druh

C - Kapitola v odborné knize

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

Advances in Fracture and Damage Mechanics /4./

ISBN

0-9547783-1-6

Počet stran výsledku

6

Strana od-do

211-216

Počet stran knihy

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Název nakladatele

EC, Ltd

Místo vydání

Eastleigh

Kód UT WoS kapitoly

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