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ASM Handbook

Mechanical Testing and Evaluation

Edited by
Howard Kuhn
Howard Kuhn
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Dana Medlin
Dana Medlin
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ASM International
Volume
8
ISBN electronic:
978-1-62708-176-4
Publication date:
2000
Book Chapter

Impact Toughness Testing

Published:
2000
Page range:
596 - 611

Abstract

Measurement and analysis of fracture behavior under high loading rates is carried out by different test methods. This article provides a discussion on the history and types of notch-toughness tests and focuses exclusively on notch-toughness tests with emphasis on the Charpy impact test. It reviews the requirements of test specimens, test machine, testing procedure and machine verification, application, and determination of fracture appearance and lateral expansion according to ASTM A370, E 23, and A 593 specifications. In addition, the article includes information on the instrumentation, standards and requirements, and limitations of instrumented Charpy impact test, which is carried out in specimens with induced fatigue precrack. The article concludes with a review of the requirements of drop weight testing and the specimens used in other notch-toughness tests.

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2000. "Impact Toughness Testing", Mechanical Testing and Evaluation, Howard Kuhn, Dana Medlin

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