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ASTM International - ASTM E1304-97(2014)

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

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Organization: ASTM International
Publication Date: 1 July 2014
Status: inactive
Page Count: 12
ICS Code (Mechanical testing of metals): 77.040.10
significance And Use:

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... 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.

(A) See Fig. 6. (A) See Fig. 6.(B) See Note 1. (A) Compiled from Refs (1), (2), (3), and (4), and using the polynomials in Table 5.(B) Minimum value of Y*. (A) Compiled from Refs (1), (2), (3), and (4).(B) Y* = exp[C0  + C1 r + C2 r2  + C3 r3  + C4 r4 ], accuracy ±0.5 %.(C) Estimated from finite element analysis (3), and extrapolated equation from Ref (4). Accuracy for 0.3 ≤ r ≤ 0.85 is ±0.5 %.(D) Extrapolated from equations in Ref (4). Accuracy estimated to be ±0.5 % for 0.2 ≤ r ≤ 0.85.(E) Equation from Ref (4). Accuracy estimated to be± 0.5 % for 0.15 ≤ r ≤ 0.6.

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...
ASTM E1304-97(2014)
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...
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...
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