Correlation Between Static Initiation Toughness and Crack Arrest Toughness 2024-T351 Aluminum Alloy

K Wallin

doi:10.1520/STP10581S

SYMPOSIA PAPER Published: 01 January 2002

STP10581S

Correlation Between Static Initiation Toughness and Crack Arrest Toughness 2024-T351 Aluminum Alloy

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The Master Curve method, developed for brittle fracture initiation estimation, has enabled a consistent analysis of fracture initiation toughness data. The method has been modified to also describe crack arrest toughness. Here, this “crack arrest master curve” is further validated and used to develop a simple, but yet adequately accurate correlation between the two fracture toughness parameters. The correlation enables the estimation of crack arrest toughness from small Charpy-sized static fracture toughness tests.

If a more accurate description of the crack arrest toughness is required, it can either be measured experimentally or estimated from instrumented Charpy-V crack arrest load information.

Author Information

Wallin, K

VTT Manufacturing Technology, Finland

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Details

Developed by Committee: E08

Pages: 17–34

DOI: 10.1520/STP10581S

ISBN-EB: 978-0-8031-5460-5

ISBN-13: 978-0-8031-2888-0

Correlation Between Static Initiation Toughness and Crack Arrest Toughness 2024-T351 Aluminum Alloy

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