Improved method for determining the stress relaxation at the crack tip

A technique is suggested to determine the stress relaxation at the crack tip during tests of a specimen of a new type at a constant crack opening fixed by a stay bolt. The shape and geometry of the specimen make it possible to set the load and to determine the crack closure force after long-term exp...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Russian metallurgy Metally 2017-10, Vol.2017 (10), p.901-904
Hauptverfasser:	Grinevich, A. V., Erasov, V. S., Avtaev, V. V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry and Materials Science Crack closure Diagnostics and Mechanical Test Techniques High temperature Materials Science Metallic Materials Stress relaxation
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A technique is suggested to determine the stress relaxation at the crack tip during tests of a specimen of a new type at a constant crack opening fixed by a stay bolt. The shape and geometry of the specimen make it possible to set the load and to determine the crack closure force after long-term exposure using the force transducer of a tensile-testing machine. The stress relaxation at the crack tip is determined in a V95pchT2 alloy specimen at elevated temperatures.
ISSN:	0036-0295 1555-6255 1531-8648
DOI:	10.1134/S0036029517100081