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ASTM E561-19 + Redline

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Standard Test Method for KR Curve Determination

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1.1 This test method covers the determination of the resistance to fracture of metallic materials under Mode I loading at static rates using either of the following notched and precracked specimens: the middle-cracked tension M(T) specimen or the compact tension C(T) specimen. A KR curve is a continuous record of toughness development (resistance to crack extension) in terms of KR plotted against crack extension in the specimen as a crack is driven under an increasing stress intensity factor, K. (1)2

Author ASTM
Editor ASTM
Document type Standard
Format File
ICS 77.040.10 : Mechanical testing of metals
Number of pages 16
Replace ASTM E561-15a + Redline
Year 2019
Document history ASTM E561-15a + Redline
ASTM E561-15 + Redline
ASTM E561-10e2 + Redline
ASTM E561-10e1 + Redline
ASTM E561-10 + Redline
ASTM E561-08e1 + Redline
Country USA
Keyword ASTM 561;ASTM E561;ASTM E561;10.1520/E0561-19