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Fracture toughness and fracture energy measurements on aluminium alloys

โœ Scribed by F.A. Johnson; A.P. Glover; J.C. Radon

Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
792 KB
Volume
8
Category
Article
ISSN
0013-7944

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โœฆ Synopsis

Methods of conducting and analysing instrumented Charpy impact tests have been discussed and applied in measuring the initiation fracture toughness, K,,, of two precipitation hardened Al-alloys.

For full speed impact tests a method for indirectly deriving fracture load from "system stiffness" and "time to fracture" has been found to be the most suitable. In the lower speed impact tests measured fracture load has been used directly to calculate K,,. In these tests an energy method superficially resembling "specific surface energy" has also been used to calculate K,,.

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