Nestabilita trhliny analyzovaná metodou interpolovaných elips

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F04%3A10108003" target="_blank" >RIV/68407700:21670/04:10108003 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Crack Instability Analyzed by the Method of Interpolated Ellipses

Popis výsledku v původním jazyce

The subject of this work is the description of the experimental '''Method of Interpolated Ellipses'' (MIE) and its application in fracture mechanics studies. The MIE is a new technique based on the optical monitoring of deformations during loading processes of hexagonal grids of dots deposited on the surface of the monitored specimen. Loading the specimen deforms a circle on the surface into an ellipse. Each ellipse is interpolated by six neighbouring dots of the hexagonal grid. Knowledge of the ellipseparameters directly yields the magnitude and the direction of principal strains on the specimen surface. Principal strain evolution yields knowledge of evolution of the plastic strain field by numerical post processing. Experimental results obtained from fracture tests of specimens with varying constraint at the crack tip have proven the evolution of plastic strain field to be a discontinuous process.

Název v anglickém jazyce

Crack Instability Analyzed by the Method of Interpolated Ellipses

Popis výsledku anglicky

The subject of this work is the description of the experimental '''Method of Interpolated Ellipses'' (MIE) and its application in fracture mechanics studies. The MIE is a new technique based on the optical monitoring of deformations during loading processes of hexagonal grids of dots deposited on the surface of the monitored specimen. Loading the specimen deforms a circle on the surface into an ellipse. Each ellipse is interpolated by six neighbouring dots of the hexagonal grid. Knowledge of the ellipseparameters directly yields the magnitude and the direction of principal strains on the specimen surface. Principal strain evolution yields knowledge of evolution of the plastic strain field by numerical post processing. Experimental results obtained from fracture tests of specimens with varying constraint at the crack tip have proven the evolution of plastic strain field to be a discontinuous process.

Druh

A - Audiovizuální tvorba

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F04%2F0567" target="_blank" >GA106/04/0567: Studium zóny poškození ve vysoce tvárných materiálech v okolí čela trhliny metodou X-ray dynamic</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2004

Kód důvěrnosti údajů

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

ISBN

0-912053-87-9

Místo vydání

Bethel

Název nakladatele resp. objednatele

Neuveden

Verze

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Identifikační číslo nosiče

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