UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

SUBMIT
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

Finish!
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

ASTM International - ASTM E1304-97(2008)e1

Standard Test Method for Plane-Strain (Chevron-Notch) Fracture Toughness of Metallic Materials

inactive
Buy Now
Organization: ASTM International
Publication Date: 1 November 2008
Status: inactive
Page Count: 11
ICS Code (Mechanical testing of metals): 77.040.10
significance And Use:

The fracture toughness determined by this test method characterizes the resistance of a material to fracture by a slowly advancing steady-state crack (see 3.2.5) in a neutral environment under... View More

scope:

1.1 This test method covers the determination of plane-strain (chevron-notch) fracture toughnesses, KIv or KIvM, of metallic materials. Fracture toughness by this method is relative to a slowly advancing steady state crack initiated at a chevron-shaped notch, and propagating in a chevron-shaped ligament (Fig. 1). Some metallic materials, when tested by this method, exhibit a sporadic crack growth in which the crack front remains nearly stationary until a critical load is reached. The crack then becomes unstable and suddenly advances at high speed to the next arrest point. For these materials, this test method covers the determination of the plane-strain fracture toughness, KIvj or KIvM, relative to the crack at the points of instability.

Note 1-One difference between this test method and Test Method E 399 (which measures KIc) is that Test Method E 399 centers attention on the start of crack extension from a fatigue precrack. This test method makes use of either a steady state slowly propagating crack, or a crack at the initiation of a crack jump. Although both methods are based on the principles of linear elastic fracture mechanics, this difference, plus other differences in test procedure, may cause the values from this test method to be larger than KIc values in some materials. Therefore, toughness values determined by this test method cannot be used interchangeably with KIc.

1.2 This test method uses either chevron-notched rod specimens of circular cross section, or chevron-notched bar specimens of square or rectangular cross section (Figs. 1-10). The terms "short rod" and "short bar" are used commonly for these types of chevron-notched specimens.

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that 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 and health practices and determine the applicability of regulatory limitations prior to use.

Document History

May 15, 2020
Standard Test Method for Plane-Strain (Chevron-Notch) Fracture Toughness of Metallic Materials
5.1 The fracture toughness determined by this test method characterizes the resistance of a material to fracture by a slowly advancing steady-state crack (see 3.2.5) in a neutral environment under...
July 1, 2014
Standard Test Method for Plane-Strain (Chevron-Notch) Fracture Toughness of Metallic Materials
5.1 The fracture toughness determined by this test method characterizes the resistance of a material to fracture by a slowly advancing steady-state crack (see 3.2.5) in a neutral environment under...
July 1, 2014
Standard Test Method for Plane-Strain (Chevron-Notch) Fracture Toughness of Metallic Materials
5.1 The fracture toughness determined by this test method characterizes the resistance of a material to fracture by a slowly advancing steady-state crack (see 3.2.5) in a neutral environment under...
November 1, 2008
Standard Test Method for Plane-Strain (Chevron-Notch) Fracture Toughness of Metallic Materials
The fracture toughness determined by this test method characterizes the resistance of a material to fracture by a slowly advancing steady-state crack (see 3.2.5) in a neutral environment under severe...
ASTM E1304-97(2008)e1
November 1, 2008
Standard Test Method for Plane-Strain (Chevron-Notch) Fracture Toughness of Metallic Materials
The fracture toughness determined by this test method characterizes the resistance of a material to fracture by a slowly advancing steady-state crack (see 3.2.5) in a neutral environment under severe...
April 10, 1997
Standard Test Method for Plane-Strain (Chevron-Notch) Fracture Toughness of Metallic Materials
1.1 This test method covers the determination of plane-strain (chevron-notch) fracture toughnesses, KIv or K IvM, of metallic materials. Fracture toughness by this method is relative to a slowly...
April 10, 1997
Standard Test Method for Plane-Strain (Chevron-Notch) Fracture Toughness of Metallic Materials
1.1 This test method covers the determination of plane-strain (chevron-notch) fracture toughnesses, KIv or K IvM, of metallic materials. Fracture toughness by this method is relative to a slowly...
Advertisement