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ASTM International - ASTM E399-09

Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K Ic of Metallic Materials

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Organization: ASTM International
Publication Date: 1 July 2009
Status: inactive
Page Count: 33
ICS Code (Mechanical testing of metals): 77.040.10
significance And Use:

The property KIc determined by this test method characterizes the resistance of a material to fracture in a neutral environment in the presence of a sharp crack under essentially... View More

scope:

1.1 This test method covers the determination of fracture toughness (KIc) 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 greater 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.

Note 1-Plane-strain fracture toughness tests of thinner materials that are sufficiently brittle (see 7.1) can be made using other types of specimens (1). 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 KIc testing. 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.

1.3 General information and requirements common to all specimen configurations:

Section
Referenced Documents2
Terminology3
Stress-Intensity Factor3.1.1
Plane-Strain Fracture Toughness3.1.2
Crack Plane Orientation3.1.3
Summary of Test Method4
Significance and Use5
Significance5.1
Precautions5.1.1-5.1.5
Practical Applications5.2
Apparatus (see also 1.4)6
Tension Machine6.1
Fatigue Machine6.2
Loading Fixtures6.3
Displacement Gage, Measurement6.4
Specimen Size, Configurations, and Preparation (see also 1.5)7
Specimen Size Estimates7.1
Standard and Alternative Specimen Configurations7.2
Fatigue Crack Starter Notches7.3.1
Fatigue Precracking (see also 1.6)7.3.2
Crack Extension Beyond Starter Notch7.3.2.2
General Procedure8
Specimen Measurements
Thickness8.2.1
Width8.2.2
Crack Size8.2.3
Crack Plane Angle8.2.4
Specimen Testing
Loading Rate8.3
Test Record8.4
Calculation and Interpretation of Results9
Test Record Analysis9.1
P

max/PQ Validity Requirement

9.1.3
Specimen Size Validity Requirements9.1.4
Reporting11
Precision and Bias12

1.4 Specific requirements related to test apparatus:

Double-Cantilever Displacement GageAnnex A1
Testing FixturesAnnex A2
Bend Specimen Loading FixtureAnnex A2.1
Compact Specimen Loading ClevisAnnex A2.2

1.5 Specific requirements related to individual specimen configurations:

Bend Specimen SE(B)Annex A3
Compact Specimen C(T)Annex A4
Disk-Shaped Compact Specimen DC(T)Annex A5
Arc-Shaped Tension Specimen A(T)Annex A6
Arc-Shaped Bend Specimen A(B)Annex A7

1.6 Specific requirements related to special test procedures:

Fatigue Precracking KIc SpecimensAnnex A8
Hot-Pressed Beryllium TestingAnnex A9
Rapid-Force TestingAnnex A10

1.7 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.8 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 and health practices and determine the applicability of regulatory limitations prior to use.

Document History

December 1, 2020
Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness of Metallic Materials
1.1Â 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...
January 1, 2020
Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness of Metallic Materials
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...
June 15, 2019
Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness KIc of Metallic Materials
1.1 This test method covers the determination of fracture toughness (KIc) of metallic materials under predominantly linear-elastic, plane-strain conditions using fatigue precracked specimens having a...
November 15, 2017
Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness KIc of Metallic Materials
1.1 This test method covers the determination of fracture toughness (KIc) of metallic materials under predominantly linear-elastic, plane-strain conditions using fatigue precracked specimens having a...
November 15, 2012
Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness KIc of Metallic Materials
1.1 This test method covers the determination of fracture toughness (KIc) of metallic materials under predominantly linear-elastic, plane-strain conditions using fatigue precracked specimens having a...
November 15, 2012
Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness KIc of Metallic Materials
1.1 This test method covers the determination of fracture toughness (KIc) of metallic materials under predominantly linear-elastic, plane-strain conditions using fatigue precracked specimens having a...
November 15, 2012
Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness KIc of Metallic Materials
1.1 This test method covers the determination of fracture toughness (KIc) of metallic materials under predominantly linear-elastic, plane-strain conditions using fatigue precracked specimens having a...
November 15, 2012
Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K Ic of Metallic Materials
1.1 This test method covers the determination of fracture toughness (KIc) of metallic materials under predominantly linear-elastic, plane-strain conditions using fatigue precracked specimens having a...
ASTM E399-09
July 1, 2009
Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K Ic of Metallic Materials
1.1 This test method covers the determination of fracture toughness (KIc) of metallic materials under predominantly linear-elastic, plane-strain conditions using fatigue precracked specimens having a...
July 1, 2009
Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness Ic of Metallic Materials
The property KIc determined by this test method characterizes the resistance of a material to fracture in a neutral environment in the presence of a sharp crack under essentially linear-elastic...
July 1, 2009
Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K Ic of Metallic Materials
The property KIc determined by this test method characterizes the resistance of a material to fracture in a neutral environment in the presence of a sharp crack under essentially linear-elastic...
November 15, 2008
Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K Ic of Metallic Materials
1.1 This test method covers the determination of fracture toughness (KIc) of metallic materials under predominantly linear-elastic, plane-strain conditions using fatigue precracked specimens having a...
December 15, 2006
Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K Ic of Metallic Materials
1.1 This test method covers the determination of fracture toughness (K Ic ) of metallic materials under predominantly linear-elastic, plane-strain conditions using fatigue precracked specimens having...
December 15, 2006
Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K Ic of Metallic Materials
1.1 This test method covers the determination of fracture toughness (K Ic ) of metallic materials under predominantly linear-elastic, plane-strain conditions using fatigue precracked specimens having...
December 15, 2006
Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness KIc of Metallic Materials
1.1 This test method covers the determination of fracture toughness (KIc) of metallic materials under predominantly linear-elastic, plane-strain conditions using fatigue precracked specimens having a...
April 1, 2005
Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness KIC of Metallic Materials
1.1 This test method covers the determination of fracture toughness (K Ic ) of metallic materials under predominantly linear-elastic, plane-strain conditions using fatigue precracked specimens having...
January 1, 1997
Standard Test Method for Plane-Strain Fracture Toughness of Metallic Materials
1.1 This test method covers the determination of the plane-strain fracture toughness (KIc) of metallic materials by tests using a variety of fatigue-cracked specimens having a thickness of 0.063 in....
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