Apr + Designation: E – 90 (Reapproved ). Standard Test Method for This test method is under the jurisdiction of ASTM Committee E-8 on. Futgue and . Properties and Testing of Materialsداوملا رابتخاو صاوخ ميحرلا نمحرلا لا مسب Determination of Fracture Toughness “Plane-S. This standard is issued under the fixed designation E ; the number immediately following the designation indicates the 1 This test method is under the jurisdiction of ASTM Committee E08 on Fatigue .. Note 2—Cutter tip angle 90° max.
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Standard and Alternative Specimen Configurations.
It is the ast, of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Enviado por Giulio flag Denunciar. Therefore, compliance with the specified validity criteria of this test satm is essential. This identification is designated by a hyphenated code with the first letter s representing the direction normal to the crack plane and the second letter s designating the expected direction of crack propagation.
In addition, an annex is provided for the specific procedures to be followed in rapid-load plane-strain fracture toughness tests. There is no standard test method for testing such thin materials. Crack Extension Beyond Starter Notch.
In addition, an annex is provided for the specific procedures to be followed in rapid-load plane-strain fracture toughness tests.
This strength ratio is a function of the maximum load the specimen can sustain, its initial dimensions and the yield strength of the material.
Fatigue Precracking see also 1. Specimen Size Validity Requirements. Note 1-Plane-strain fracture toughness tests of thinner materials that are sufficiently brittle see 7.
Bend Specimen SE B. Apparatus see also 1. In addition, the product form should be identified for example, straight-rolled plate, cross-rolled plate, pancake forging, etc. Current edition approved Nov. The orientation of the crack plane should be identified wherever possible in accordance with the following systems Fatigue Precracking KIc Specimens.
The specification of K Ic values in relation to a particular application should signify that a fracture control study has been conducted for the component in relation to the expected loading and environment, and in relation to the sensitivity and reliability of the crack detection procedures that are to be applied prior to service and subsequently during the anticipated life.
General information and requirements common to all specimen e39-990 are listed as follows:. Last previous edition E — The first part gives general recommendations and requirements for K Ic testing.
ASTM E Standard Test Method for Plane-Strain Fracture – Google Books
Work Item s – proposed revisions of this standard. Additional annexes are provided that give specific procedures for beryllium and rapid-force testing. K Ic may also be expected to rise with increasing ligament size. Link to Active This link will always route to the current Active version of the standard. Details of test apparatus, specimen configuration, and experimental procedure are given in the Annexes.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. General information and requirements common to all specimen types are listed as follows: Bend Specimen Loading Fixture. Plane-strain fracture toughness tests of thinner materials that are sufficiently brittle see 7. This strength ratio is a function of the maximum load the specimen can sustain, its initial dimensions and the yield strength of the material.
ASTM E399 (Standard Test Method for Plane Strain Fracture Toughness for Metallic Materials)
Compact Specimen Loading Clevis. The values given in parentheses are for information only. Crack extension under cyclic or sustained forces as by stress corrosion cracking or creep crack growth can be influenced by temperature and environment. Active view current version of standard.
ASTM E – 90() Standard Test Method for Plane-Strain Fracture Toughness of Metallic Materials
This standard has been approved for use by agencies of the Department of Defense. E — 90 Reapproved Standard Test Method for Plane-Strain Fracture Toughness of Metallic Materials1 This standard is issued under the fixed designation E ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. Likewise this test method does not apply to high toughness or high tearing-resistance materials whose failure ee399-90 accompanied by appreciable amounts of plasticity.
Background information concerning the basis for development of this test method in terms of linear elastic fracture mechanics may be found in Refs 1 and 2. Historical Version s – view previous versions of standard. The asym part consists of Annexes that give specific information on displacement d399-90 and loading fixture design, special requirements for individual specimen configurations, and detailed procedures for fatigue precracking.
Summary of Test Method. Specimen Size, Configurations, and Preparation see also 1.