Localization of cracks arising from mechanical loading of solids

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F08%3APU77192" target="_blank" >RIV/00216305:26220/08:PU77192 - 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

Lokalizace trhlin vznikajících při mechanickém zatěžování pevných látek

Original language description

Simultaneous measurement of electromagnetic (EME) and acoustic (AE) emission signals resulting from mechanical loading of solids can be used to localize the arising cracks. In the 2D case, the localization methods are usually based on identifying intersection points of the circles drawn around the AE sensors (provided the time of the crack generation is known from the EME signal measurement) or hyperbolas, whose foci are situated in the AE sensors (when only AE signals are measured). When these methodsare applied, the mechanical wave propagation velocity in the material under investigation must be known. However, if an excessive number of AE sensors is used, the different circle or hyperbola intersection points are not identical. In fact, these intersection points are only marking the boundaries of the region of probable crack generation. The information provided for the point in question in this way is not unambiguous. Therefore, to support the arising crack localization efforts, a n

Czech name

Lokalizace trhlin vznikajících při mechanickém zatěžování pevných látek

Czech description

Simultaneous measurement of electromagnetic (EME) and acoustic (AE) emission signals resulting from mechanical loading of solids can be used to localize the arising cracks. In the 2D case, the localization methods are usually based on identifying intersection points of the circles drawn around the AE sensors (provided the time of the crack generation is known from the EME signal measurement) or hyperbolas, whose foci are situated in the AE sensors (when only AE signals are measured). When these methodsare applied, the mechanical wave propagation velocity in the material under investigation must be known. However, if an excessive number of AE sensors is used, the different circle or hyperbola intersection points are not identical. In fact, these intersection points are only marking the boundaries of the region of probable crack generation. The information provided for the point in question in this way is not unambiguous. Therefore, to support the arising crack localization efforts, a n

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/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)

Publication year

2008

Confidentiality

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

Article name in the collection

Defektoskopie 2008

ISBN

978-80-214-3759-3

ISSN

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e-ISSN

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Number of pages

8

Pages from-to

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Publisher name

Česká společnost pro nedestruktivní testování

Place of publication

Brno

Event location

Brno

Event date

Nov 4, 2008

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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