Non-destructive Observation of Damage Processes in precracked specimens by X-Ray Dynamic Defectoscopy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F04%3A00107998" target="_blank" >RIV/68407700:21670/04:00107998 - 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

Non-destructive Observation of Damage Processes in precracked specimens by X-Ray Dynamic Defectoscopy

Popis výsledku v původním jazyce

This work devotes to the new, direct and nondestructive experimental method called "X Ray Dynamic Defectoscopy (XRDD)". The XRDD technique enables on-line observation of time-dependent material density variations with micrometric accuracy. This techniqueis realized because a fast, pixel, single X-ray photon counting system called Medipix became available. The Medipix detection system is arranged as a matrix array of single detecting pixels. The XRDD method was born from an experimental program measuring the development and evolution of internal damage in specimens. The test sample is illuminated by X rays during the loading process. Special attention has been paid to the precise determination of attenuation along the beam direction. Measured changes in transmission represent effective alterations in the sample thickness, which are understood as weakening of the material due to damage volume fraction resulting from loading stress.

Název v anglickém jazyce

Non-destructive Observation of Damage Processes in precracked specimens by X-Ray Dynamic Defectoscopy

Popis výsledku anglicky

This work devotes to the new, direct and nondestructive experimental method called "X Ray Dynamic Defectoscopy (XRDD)". The XRDD technique enables on-line observation of time-dependent material density variations with micrometric accuracy. This techniqueis realized because a fast, pixel, single X-ray photon counting system called Medipix became available. The Medipix detection system is arranged as a matrix array of single detecting pixels. The XRDD method was born from an experimental program measuring the development and evolution of internal damage in specimens. The test sample is illuminated by X rays during the loading process. Special attention has been paid to the precise determination of attenuation along the beam direction. Measured changes in transmission represent effective alterations in the sample thickness, which are understood as weakening of the material due to damage volume fraction resulting from loading stress.

Druh

C - Kapitola v odborné knize

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

The Annals of the Marie Curie fellowships

ISBN

92-894-7233-2

Počet stran výsledku

7

Strana od-do

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Počet stran knihy

13

Název nakladatele

European Commission

Místo vydání

Brussels

Kód UT WoS kapitoly

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