ISO 22889:2007

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Metallic materials — Method of test for the determination of resistance to stable crack extension using specimens of low constraint

Published By	Publication Date	Number of Pages
ISO	2007-12	56

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Categories: 77.040.10 - Mechanical testing of metals, ISO

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Description

ISO 22889:2007 specifies methods for determining the resistance to stable crack extension in terms of crack opening displacement and critical crack tip opening angle for homogeneous metallic materials by the quasistatic loading of cracked specimens that exhibit low constraint to plastic deformation. Compact and middle-cracked tension specimens are notched, precracked by fatigue, and tested under slowly increasing displacement.

ISO 22889:2007 describes methods covering tests on specimens not satisfying requirements for size-insensitive fracture properties; namely, compact specimens and middle-cracked tension specimens in relatively thin gauges.

Methods are given for determining the crack extension resistance curve. Methods for determining point values of fracture toughness for the middle-cracked tension specimen are also given.

Additional information

Published Code	ISO
Published By	International Organization for Standardization
Publication Date	2007-12
Pages Count	56
Language	English
Edition	1
File Size	3.3 MB
ICS Codes	77.040.10 - Mechanical testing of metals

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ISO 22889:2007

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