Analysis of mechanical load induced micro-crack generation in composites

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F05%3APU52159" target="_blank" >RIV/00216305:26220/05:PU52159 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

čeština

Original language name

Analýza vzniku mikrotrhlin v mechanicky zatěžovaných kompozitních materiálech

Original language description

The formation of a crack is accompanied by the generation electromagnetic field, whose fundamental parameters were evaluated for a dipole model of the respective source. A differential equation was developed and solved to describe the transformation of the field parameters into an electric signal, provided capacitive and inductive sensors are used. In the next stage, an analysis of spurious external electromagnetic and acoustic fields was carried out and measures to suppress their effects were designed.. The issue of amplifying extremely low electromagnetic signals generated during the crack formation was dealt with, too. The mentioned analyses resulted in the design of a method to detect and evaluate electromagnetic emission (EME) signals and acousticemission (AE) signals, which accompany mechanical stressing of materials and structures. Based on the results of such analyses, an automated double-channel measuring apparatus for both signal data acquisition, saving and processing. The o

Czech name

Analýza vzniku mikrotrhlin v mechanicky zatěžovaných kompozitních materiálech

Czech description

The formation of a crack is accompanied by the generation electromagnetic field, whose fundamental parameters were evaluated for a dipole model of the respective source. A differential equation was developed and solved to describe the transformation of the field parameters into an electric signal, provided capacitive and inductive sensors are used. In the next stage, an analysis of spurious external electromagnetic and acoustic fields was carried out and measures to suppress their effects were designed.. The issue of amplifying extremely low electromagnetic signals generated during the crack formation was dealt with, too. The mentioned analyses resulted in the design of a method to detect and evaluate electromagnetic emission (EME) signals and acousticemission (AE) signals, which accompany mechanical stressing of materials and structures. Based on the results of such analyses, an automated double-channel measuring apparatus for both signal data acquisition, saving and processing. The o

Type

D - Article in proceedings

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GP102%2F02%2FD073" target="_blank" >GP102/02/D073: Cracks detection in solids by means of electromagnetic emission</a><br>

Continuities

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

Publication year

2005

Confidentiality

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

Article name in the collection

Defektoskopie 2005, Sborník příspěvků

ISBN

80-214-3053-2

ISSN

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e-ISSN

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Number of pages

9

Pages from-to

97-105

Publisher name

Brno University of Technology

Place of publication

Brno

Event location

Znojmo

Event date

Nov 8, 2005

Type of event by nationality

CST - Celostátní akce

UT code for WoS article

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