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)

Active view current version of standard. Compact Specimen Loading Clevis. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the astmm of regulatory limitations prior to use.

Work Item s – proposed revisions of this standard. 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.

Additional annexes are provided that give specific procedures for beryllium and rapid-force testing. E — 90 Reapproved Standard Test Method for Plane-Strain Fracture Toughness e3999-0 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.

General information and requirements common to all specimen types are listed as asrm Compact Specimen C T.

In addition, an annex is provided for the specific procedures to be followed in rapid-load plane-strain fracture toughness tests. 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: It is the responsibility of the user of this standard e399-0 establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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Summary of Test Method. The first part gives general information concerning the recommenda- tions e399-9 requirements for KIc testing. Crack extension under cyclic or sustained forces as by stress corrosion cracking or creep crack growth can be influenced by temperature and environment. 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.

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. Therefore, compliance with the specified validity criteria of this test method is essential.

The specification of K Ic values in relation to a particular application should signify that aztm 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.

This strength ratio is a function of the maximum load the specimen can sustain, its initial dimensions and the yield strength of the material. Guide B provides supplementary guidelines for plane strain fracture toughness testing of aluminum alloy products for which complete stress relief is not practicable.

This standard has been approved for use by agencies of the Department of Defense. The first part gives general recommendations and requirements for K Ic testing. The first part gives general information concerning the recommendations and requirements for Ic testing. Link to Active This link will always route to the current Active version of the standard. Specimen Size Validity Requirements.

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

The values given in parentheses are for information only. Specimen Size, Configurations, and Preparation see also 1. Work Item s – proposed revisions of ast, standard. Fatigue Crack Starter Notches.

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

The details of the various specimen and test configurations are shown in Annexes A1 through A7 and A9. Fatigue Precracking see also 1. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Guidance on testing elastic-plastic materials is given in Test Method E A number in parentheses indicates the year of last reapproval. 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.

The present test method does not apply to such materials and the user is referred to Test Method E and E 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.

Originally published as E — 70 T. This strength ratio is a function of the maximum load the specimen can sustain, its initial dimensions and the yield strength of the material.