Experimental study of mechanically stressed composite materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F08%3APU76409" target="_blank" >RIV/00216305:26220/08:PU76409 - 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

Experimental study of mechanically stressed composite materials

Popis výsledku v původním jazyce

The phenomenon of stochastic electromagnetic emission (EME) from solids is based on the generation of an electromagnetic field accompanying the mechanical excitation of the solids in question. This phenomenon is generally termed fractoemission. Our experiments were carried out on a composite dielectric material, consisting of fibrous glass reinforcement which was bound with resin-based binding agents. Our model assumes that the crack walls get charged with electric charges +q(t) and q(t) in consequenceof the bonding electron statistical distribution during the crack forming process. The crack walls are moving with a velocity v(t). Both mentioned quantities can therefore be regarded as random processes. The time development of a voltage u(t) across a load resistor being connected in series with a sensing capacitor was measured. The time behaviour of the product of the electric charge and its velocity q(t).v(t) can be determined from the voltages u(t). The crack generation process may b

Název v anglickém jazyce

Experimental study of mechanically stressed composite materials

Popis výsledku anglicky

The phenomenon of stochastic electromagnetic emission (EME) from solids is based on the generation of an electromagnetic field accompanying the mechanical excitation of the solids in question. This phenomenon is generally termed fractoemission. Our experiments were carried out on a composite dielectric material, consisting of fibrous glass reinforcement which was bound with resin-based binding agents. Our model assumes that the crack walls get charged with electric charges +q(t) and q(t) in consequenceof the bonding electron statistical distribution during the crack forming process. The crack walls are moving with a velocity v(t). Both mentioned quantities can therefore be regarded as random processes. The time development of a voltage u(t) across a load resistor being connected in series with a sensing capacitor was measured. The time behaviour of the product of the electric charge and its velocity q(t).v(t) can be determined from the voltages u(t). The crack generation process may b

Druh

D - Stať ve sborníku

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/GA103%2F06%2F0708" target="_blank" >GA103/06/0708: Akustická a elektromagnetická emise v materiálovém výzkumu</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název statě ve sborníku

Multilevel Approach to Fracture of Materials, Components and Structures (ECF17)

ISBN

9781617823190

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

2517-2522

Název nakladatele

Vutium

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

2. 9. 2008

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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