Published 1980 | Version v1
Miscellaneous Metadata-only

Contribution for characterizing the shape of flaws by ultrasonic inspection

Creators

  • 1. Bundesanstalt fuer Materialpruefung, Berlin (Germany, F.R.)

Description

By calculating the impulse response is possible to isolate characteristics from the ultrasonic echo of a flaw, which are typical for the type of flaw. From these characteristics it is possible to estimate the properties of the flaw like size, shape and orientation. For model reflectors these characteristics can be theoretically calculated. The agreement with experiments is good. Deviations can be explained and calculated theoretically. On this basis measurements have been done on artificial flaws with a simplified method under practical conditions. The results were well reproducible also under changing experimental conditions. (orig.)

Availability note (English)

Available from Fachinformationszentrum Karlsruhe.

Abstract (German)

Aus dem Ultraschallecho einer Ungaenze koennen durch Ermittlung der Impulsantwort Merkmale isoliert werden, die fuer die Ungaenze wie Groesse, Form und Lage, zurueckgeschlossen werden kann. Fuer Modellreflektoren sind diese Merkmale leicht theoretisch berechenbar. Die Uebereinstimmung mit dem Experiment ist gut, zumal auftretende Abweichungen theoretisch erklaert und berechnet werden koennen. Auf dieser Grundlage aufbauend wurden mit einer vereinfachten Methode Messungen an kuenstlichen Ungaenzen unter praxisaehnlichen Bedingungen durchgefuehrt, deren Ergebnisse auch bei veraenderten Versuchsparametern gut reproduzierbar waren. (orig.)

Additional details

Additional titles

Original title (German)
Beitrag zur Form-Unterscheidung von Ungaenzen bei der Ultraschallpruefung

Publishing Information

Imprint Title
New methods of non-destructive testing of materials and their application especially in nuclear engineering
Journal Page Range
p. 53-60.

Conference

Title
International symposium on new methods of non-destructive testing of materials and their application especially in nuclear engineering.
Dates
17 - 19 Sep 1979.
Place
Saarbruecken, Germany, F.R.

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
11544586
Subject category
S42: ENGINEERING;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
BEAM OPTICS; DEFECTS; INSPECTION; SCATTERING; SHAPE; ULTRASONIC TESTING; ULTRASONIC WAVES
Descriptors DEC
ACOUSTIC TESTING; CONFIGURATION; MATERIALS TESTING; NONDESTRUCTIVE TESTING; SOUND WAVES; TESTING

Optional Information

Notes
Imprint:Neue Verfahren der zerstoerungsfreien Werkstoffpruefung und deren Anwendungen insbesondere in der Kerntechnik.;Vortraege.