ASTM E399-23
Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness of Metallic Materials

Standard No.

ASTM E399-23

Release Date

2023

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM E399-23

Scope

1.1 This test method covers the determination of fracture toughness (KIc and optionally KIsi) of metallic materials under predominantly linear-elastic, plane-strain conditions using fatigue precracked specimens having a thickness of 1.6 mm (0.063 in.) or greater2 subjected to slowly, or in special (elective) cases rapidly, increasing crack-displacement force. Details of test apparatus, specimen configuration, and experimental procedure are given in the annexes. Two procedures are outlined for using the experimental data to calculate fracture toughness values: 1.1.1 The KIc test procedure is described in the main body of this test standard and is a mandatory part of the testing and results reporting procedure for this test method. The KIc test procedure is based on crack growth of up to 2 % percent of the specimen width. This can lead to a specimen size dependent rising fracture toughness resistance curve, with larger specimens producing higher fracture toughness results. 1.1.2 The KIsi test procedure is described in Appendix X1 and is an optional part of this test method. The KIsi test procedure is based on a fixed amount of crack extension of 0.5 mm, and as a result, KIsi is less sensitive to specimen size than KIc. This less size-sensitive fracture toughness, KIsi, is called size-insensitive throughout this test method. Appendix X1 contains an optional procedure for reinterpreting the forcedisplacement test record recorded as part of this test method to calculate the additional fracture toughness value, KIsi. NOTE 1—Plane-strain fracture toughness tests of materials thinner than 1.6 mm (0.063 in.) that are sufficiently brittle (see 7.1) can be made using other types of specimens (1).3 There is no standard test method for such thin materials. 1.2 This test method is divided into two parts. The first part gives general recommendations and requirements for testing and includes specific requirements for the KIc test procedure. The second part consists of Annexes that give specific information on displacement gage and loading fixture design, special requirements for individual specimen configurations, and detailed procedures for fatigue precracking. Additional annexes are provided that give specific procedures for beryllium and rapid-force testing, and the KIsi test procedure, which provides an optional additional analysis procedure for the test data collected as part of the KIc test procedure.

ASTM E399-23 Referenced Document

• ASTM B645 Standard Practice for Plane-Strain Fracture Toughness Testing of Aluminum Alloys
• ASTM B909 Standard Guide for Plane Strain Fracture Toughness Testing of Non-Stress Relieved Aluminum Products
• ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• ASTM E1820 Standard Test Method for Measurement of Fracture Toughness
• ASTM E1823 Standard Terminology Relating to Fatigue and Fracture Testing
• ASTM E1921 Standard Test Method for Determination of Reference Temperature, T_o, for Ferritic Steels in the Transition Range
• ASTM E1942 Standard Guide for Evaluating Data Acquisition Systems Used in Cyclic Fatigue and Fracture Mechanics Testing
• ASTM E3076 Standard Practice for Determination of the Slope in the Linear Region of a Test Record
• ASTM E4 Standard Practices for Force Verification of Testing Machines
• ASTM E456 Standard Terminology for Relating to Quality and Statistics
• ASTM E647 Standard Test Method for Measurement of Fatigue Crack Growth Rates
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
• ASTM E8/E8M Standard Test Methods for Tension Testing of Metallic Materials*， 2024-01-01 Update

ASTM E399-23 history

• 2023 ASTM E399-23 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness of Metallic Materials
• 2022 ASTM E399-22 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness of Metallic Materials
• 2020 ASTM E399-20a Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness of Metallic Materials
• 2020 ASTM E399-20 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K_IC of Metallic Materials
• 2019 ASTM E399-19 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K_IC of Metallic Materials
• 2017 ASTM E399-17 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness KIc of Metallic Materials
• 2012 ASTM E399-12e3 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness KIc of Metallic Materials
• 2012 ASTM E399-12e2 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness KIc of Metallic Materials
• 2012 ASTM E399-12e1 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness KIc of Metallic Materials
• 2012 ASTM E399-12 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K Ic of Metallic Materials
• 2009 ASTM E399-09e2 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness _Ic of Metallic Materials
• 2009 ASTM E399-09e1 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K Ic of Metallic Materials
• 2009 ASTM E399-09 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K Ic of Metallic Materials
• 2008 ASTM E399-08 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K Ic of Metallic Materials
• 2006 ASTM E399-06e2 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K Ic of Metallic Materials
• 2006 ASTM E399-06e1 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K_Ic of Metallic Materials
• 2006 ASTM E399-06 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K _Ic of Metallic Materials
• 2005 ASTM E399-05 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K_IC of Metallic Materials
• 1990 ASTM E399-90(1997) Standard Test Method for Plane-Strain Fracture Toughness of Metallic Materials