ASTM E399-90 PDF

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

Link to Active This link will always route to the current Active version of the standard. General information and requirements common to all specimen types are listed as follows: Therefore, compliance with the specified validity criteria of this test method is essential. The effect can be especially significant for specimens removed from as-heat treated or otherwise non-stress relieved stock, from weldments, from complex wrought parts, or from parts with intentionally induced residual stresses.

Last previous edition E — K Ic may also be expected to rise with increasing ligament size. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. NOTE 1—Plane-strain fracture toughness tests of thinner materials that are sufficiently brittle see 7. Crack Extension Beyond Starter Notch.

Crack extension under cyclic or sustained forces as by stress corrosion cracking or creep crack growth can be influenced by temperature and environment. This strength ratio is a function of the maximum load the specimen can sustain, its initial dimensions and the yield strength of the material. Specimen Size Validity Requirements.

This standard has been approved for use by agencies of the Department of Defense. Plane-strain fracture toughness tests of thinner materials that are sufficiently brittle see 7. Fatigue Precracking see also 1. Therefore, when K Ic is applied to the design of service components, xstm between laboratory test and field conditions shall be considered. Compact Specimen Loading Clevis. 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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Compact Specimen C T. The details of the various specimen and test configurations are shown in Annexes A1 through A7 and A9. Originally published as E — 70 T. The orientation of the crack plane should be identified wherever possible in accordance with the following systems E399-0 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.

The first part gives general information concerning the recommendations and requirements for Ic testing. Work Item s – proposed revisions of this standard. In addition, an annex is provided for the specific procedures to be followed in rapid-load plane-strain fracture toughness tests.

Historical Version s – view previous versions of standard. 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 e399–90 fatigue precracking.

ASTM E Standard Test Method for Plane-Strain Fracture – Google Books

The first part gives general recommendations e399-900 requirements for K Ic testing. Specimen Size, Configurations, and Preparation see also 1. Guide B provides supplementary guidelines for plane strain fracture toughness testing of aluminum alloy products for which complete stress relief is not practicable.

Note 1-Plane-strain fracture toughness tests of thinner materials that are sufficiently brittle see 7. Active view current version of ast. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. In addition, the product form should be identified for example, straight-rolled plate, cross-rolled plate, pancake forging, etc.

The first part gives general information e399-90 the recommenda- tions and requirements for KIc testing. This strength ratio is a function of the maximum load the specimen can sustain, its initial dimensions and the yield strength of the material.

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Current edition approved Nov. Additional annexes are provided atsm give specific procedures for beryllium and rapid-force testing. Fatigue Precracking KIc Specimens. Asym see also 1. Calculation and Interpretation of Results. Details of test apparatus, specimen configuration, and experimental procedure are given in the Annexes.

The values given in parentheses are for information only. Bend Specimen SE B. Guidance on testing elastic-plastic materials is given in Test Method E Link to Active This link will astk route to the current Active version of the standard.

E — 90 Reapproved Standard Test Method for Plane-Strain Fracture Toughness asm 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 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. Asstm por Giulio flag Denunciar.

The specification of K Sstm 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. Bend Specimen Loading Fixture. 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.

There is no standard test method for testing such thin materials. General information and requirements common to all specimen types are listed as follows: In addition, an annex is provided for the specific procedures to be followed in rapid-load plane-strain fracture toughness tests.