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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Bend Specimen SE B.

Note awtm fracture toughness tests of thinner materials that are sufficiently brittle see 7. E939-90 information and requirements common to all specimen types are listed as follows:. Asgm orientation of the crack plane should be identified wherever possible in accordance with the following systems Details of test apparatus, specimen configuration, and experimental procedure are given in the Annexes.

Fatigue Precracking KIc Specimens. Fatigue Precracking see also 1. General information and requirements common to all specimen types are listed as follows: Enviado por Giulio flag Denunciar.

The specification of K Ic qstm 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. Specimen Size Validity Requirements.

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 awtm material. Standard and Alternative Specimen Configurations.

Therefore, compliance with the specified validity criteria of this test method is essential. Link to Active This link will always route to the current Active version of the standard. 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.

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A aztm epsilon e indicates an editorial change since the last revision or reapproval.

ASTM E399 (Standard Test Method for Plane Strain Fracture Toughness for Metallic Materials)

Specimen Size, Configurations, and Preparation see also 1. Indications of residual stress include distortion during specimen machining, results that are specimen configuration dependent, and irregular fatigue precrack growth either excessive crack front curvature or out-of-plane growth.

Historical Version s – view previous versions of standard. Guidance on testing elastic-plastic materials is given in Test Method E This standard has been approved for use by agencies of the Department of Defense.

Guide B provides supplementary guidelines for plane strain fracture toughness testing of aluminum alloy products for which complete stress relief is not practicable. The second part is composed of asfm that give the displacement gage design, fatigue cracking procedures, and special requirements for the various specimen configurations covered by this method.

General information and requirements common to all specimen types are listed as follows: It is the responsibility of the user of this standard to establish appropriate safety, health, and 3e99-90 practices and determine the applicability of regulatory limitations prior to use.

Calculation and Interpretation of Results. The first part e3999-90 general information concerning the recommenda- tions and requirements for KIc testing. Compact Specimen C T.

Apparatus see also 1. Summary of Test Method. The second part is composed of annexes that give the displacement gage design, fatigue cracking procedures, and special requirements for the various specimen configurations covered by this method. The present test method does not apply to such materials and the user is referred to Test Method E and E The details of the various specimen and test configurations are astmm in Annexes A1 through A7 and A9.

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. 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.

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Plane-strain fracture toughness tests of thinner materials that are sufficiently brittle see 7. Current edition approved Nov. Work Item s – proposed revisions of this standard.

Compact Specimen Loading Clevis. This strength ratio is a function of the maximum load the specimen can sustain, its initial dimensions and the yield strength of the material. Likewise this test method does not apply to high toughness or high tearing-resistance astj whose wstm is accompanied by appreciable amounts of plasticity.

ASTM E – 90() Standard Test Method for Plane-Strain Fracture Toughness of Metallic Materials

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Last previous edition E — 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. There is no standard test method for testing such thin materials.

Crack extension under cyclic or sustained forces as by stress corrosion cracking or creep crack growth can be influenced by temperature and environment. It is the responsibility of the user of this standard to establish appro- priate safety and health practices and determine the applica- bility of regulatory limitations prior to use.

Active view current version of standard.

K E399-90 may also be expected to rise with increasing ligament size. Originally published as E — 70 T. The first part gives general information concerning the recommendations and requirements for Ic testing.

In addition, an annex is provided for the specific procedures to be followed e39-90 rapid-load plane-strain fracture toughness tests. In addition, the product form should be identified for example, straight-rolled plate, cross-rolled plate, pancake forging, etc. Bend Specimen Loading Fixture. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.