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ASTM E1304-97(2020)
Standard Test Method for Plane-Strain (Chevron-Notch) Fracture Toughness of Metallic Materials
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STANDARD published on 15.5.2020
The information about the standard:
Designation standards: ASTM E1304-97(2020)
Publication date standards: 15.5.2020
SKU: NS-993860
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text ASTM E1304-97(2020) :
Keywords:
ICS Number Code 77.040.10 (Mechanical testing of metals)
Additional information
| Significance and Use | ||||||||
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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 severe tensile constraint. The state of stress near the crack front approaches plane strain, and the crack-tip plastic region is small compared with the crack size and specimen dimensions in the constraint direction. A KIv or 5.1.1 The KIv, 5.1.2 Plane-strain fracture toughness testing is unusual in that there can be no advance assurance that a valid 5.2 This test method can serve the following purposes: 5.2.1 To establish the effects of metallurgical variables such as composition or heat treatment, or of fabricating operations such as welding or forming, on the fracture toughness of new or existing materials. 5.2.2 For specifications of acceptance and manufacturing quality control, but only when there is a sound basis for specification of minimum KIv, 5.2.3 To provide high spatial resolution in measuring plane strain fracture toughness variations in parent pieces of material Note 2: The high spatial resolution is possible because of the small allowable specimen size criterion, B ≥ 1.25 (1.1 This test method covers the determination of plane-strain (chevron-notch) fracture toughnesses, 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. |
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