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ASTM

E1820-20ae1 Standard Test Method for Measurement of Fracture Toughness

Edition: 2020

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Description of ASTM-E1820 2020

ASTM E1820-20ae1

Historical Standard: Standard Test Method for Measurement of Fracture Toughness

ASTM E1820

Scope

1.1 This test method covers procedures and guidelines for the determination of fracture toughness of metallic materials using the following parameters: K, J, and CTOD (δ). Toughness can be measured in the R-curve format or as a point value. The fracture toughness determined in accordance with this test method is for the opening mode (Mode I) of loading.

Note 1: Until this version, K_Ic could be evaluated using this test method as well as by using Test Method E399. To avoid duplication, the evaluation of K_Ic has been removed from this test method and the user is referred to Test Method E399.

1.2 The recommended specimens are single-edge bend, [SE(B)], compact, [C(T)], and disk-shaped compact, [DC(T)]. All specimens contain notches that are sharpened with fatigue cracks.

1.2.1 Specimen dimensional (size) requirements vary according to the fracture toughness analysis applied. The guidelines are established through consideration of material toughness, material flow strength, and the individual qualification requirements of the toughness value per values sought.

Note 2: Other standard methods for the determination of fracture toughness using the parameters K, J, and CTOD are contained in Test Methods E399, E1290, and E1921. This test method was developed to provide a common method for determining all applicable toughness parameters from a single test.

1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

crack initiation; crack-tip opening displacement; CTOD; ductile fracture; elastic-plastic fracture toughness; fracture instability; J-integral; JIc; KJic; Jc; δc; plane-strain fracture toughness; resistance curve; stable crack growth;

ICS Code

ICS Number Code 77.040.10 (Mechanical testing of metals)

DOI: 10.1520/E1820-20AE01

This book also exists in the following packages...

Year	Publisher	Title		Annual Price
VAR	ASTM	ASTM Volume 03.01 Metals -- Mechanical Testing; Elevated and Low-Temperature Tests; Metallography	[+]	$1,251.32	Buy
	2004	ASTM	E111-04 Standard Test Method for Young's Modulus, Tangent Modulus, and Chord Modulus
	1997	ASTM	E111-97 Standard Test Method for Young's Modulus, Tangent Modulus, and Chord Modulus
	2002	ASTM	E328-02 Standard Test Methods for Stress Relaxation Tests for Materials and Structures
	2008	ASTM	E328-02(2008) Standard Test Methods for Stress Relaxation Tests for Materials and Structures
	2005	ASTM	E1012-05 Standard Practice for Verification of Test Frame and Specimen Alignment Under Tensile and Compressive Axial Force Application
	2005	ASTM	E1049-85(2005) Standard Practices for Cycle Counting in Fatigue Analysis
	2005	ASTM	E1077-01(2005) Standard Test Methods for Estimating the Depth of Decarburization of Steel Specimens
	2008	ASTM	E1180-08 Standard Practice for Preparing Sulfur Prints for Macrostructural Evaluation
	2008	ASTM	E1181-02(2008) Standard Test Methods for Characterizing Duplex Grain Sizes
	2009	ASTM	E1237-93(2009) Standard Guide for Installing Bonded Resistance Strain Gages
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VAR	ASTM	ASTM Section 3 - Metals Test Methods and Analytical Procedures	[+]	$4,507.56	Buy
	2002	ASTM	B117-02 Standard Practice for Operating Salt Spray (Fog) Apparatus
	2003	ASTM	B117-03 Standard Practice for Operating Salt Spray (Fog) Apparatus
	2007	ASTM	B117-07 Standard Practice for Operating Salt Spray (Fog) Apparatus
	2007	ASTM	B117-07a Standard Practice for Operating Salt Spray (Fog) Apparatus
	1997	ASTM	B117-97 Standard Practice for Operating Salt Spray (Fog) Apparatus
	2004	ASTM	E111-04 Standard Test Method for Young's Modulus, Tangent Modulus, and Chord Modulus
	1997	ASTM	E111-97 Standard Test Method for Young's Modulus, Tangent Modulus, and Chord Modulus
	2003	ASTM	E164-03 Standard Practice for Ultrasonic Contact Examination of Weldment
	2008	ASTM	E164-08 Standard Practice for Contact Ultrasonic Testing of Weldments
	1997	ASTM	E164-97 Standard Practice for Ultrasonic Contact Examination of Weldments
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Description of ASTM-E1820 2020

ASTM E1820-20ae1

Historical Standard: Standard Test Method for Measurement of Fracture Toughness

ASTM E1820

This book also exists in the following packages...

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About ASTM

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Description of ASTM-E1820 2020

ASTM E1820-20ae1

Historical Standard: Standard Test Method for Measurement of Fracture Toughness

ASTM E1820

This book also exists in the following packages...

Subscription Information

About ASTM

⨯To continue with accurate pricing,
please select your company type below: