Study of crack behaviour during mechanical stressing of composite materials
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F07%3APU70323" target="_blank" >RIV/00216305:26220/07:PU70323 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Study of crack behaviour during mechanical stressing of composite materials
Original language description
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. Our experiments were carried out on a composite dielectric material, consisting of fibrous glass reinforcement which was bound with resin-based binding agents. 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 be split into two phases. The first phase includes the crack generation. In this phase, both this quantities are varying. During the second phase, the crack walls are moving while the charge they are carrying is virtually stabilized. This method is a convenient tool for study of microcracks arising in stressed solid dielectric materials.
Czech name
Studium chování trhlin v průběhu mechanického zatěžování kompozitních materiálů
Czech description
Jev elektromagnetické emise je založen na generaci elektromagnetického pole v důsledku mechanického zatěžování pevných látek. V této práci jsme se zabývali vznikem elektromagnetické emise v kompozitním materiálu extren.
Classification
Type
D - Article in proceedings
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA103%2F06%2F0708" target="_blank" >GA103/06/0708: Acoustic and electromagnetic emission in materials research</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
New trends in physics
ISBN
978-80-7355-078-3
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
65-68
Publisher name
Z. Novotný, Ing., CSc.
Place of publication
Brno
Event location
Brno
Event date
Nov 15, 2007
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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