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

The orientation of the crack plane should be identified wherever possible in accordance with the following systems There is no standard test method for testing such thin materials. 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. In addition, an annex is provided for the specific procedures to be followed in rapid-load plane-strain fracture toughness tests. Last previous edition E — Enviado por Giulio flag Denunciar.

This strength ratio is a function of the maximum load the specimen can sustain, its initial dimensions and the yield strength of the material. Link to Active This link will always route to the current Active version of the standard. Active view current version of standard. Details of test apparatus, specimen configuration, and experimental procedure are given in the Annexes.

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 aastm relation to the expected loading and environment, and in relation to the sensitivity and ashm of the crack detection procedures that are to be applied prior to service and subsequently during the anticipated life.

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General information and requirements common to all specimen types are listed as follows: K Ic may also be expected to rise with increasing ligament size. The first part gives general information concerning the recommendations and requirements for Ic testing.

It is the responsibility of the user of this 3e99-90 to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard and Alternative Specimen Configurations. 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 aztm, in the case of aastm, the year of last revision.

Note 1-Plane-strain fracture toughness tests of thinner materials that are sufficiently brittle see 7. Compact Specimen C T. NOTE 1—Plane-strain fracture toughness tests of thinner materials that are sufficiently brittle see 7. In addition, the product form should be identified for example, straight-rolled plate, cross-rolled plate, pancake forging, etc.

Bend Specimen SE B. 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.

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

Originally published as E — 70 T. Calculation and Interpretation of Results. The first part gives general recommendations and requirements for K Ic testing. Therefore, when K Ic is applied to the design of service components, differences between laboratory test and field conditions shall be considered. Link to Active This link will always route to the current Active version of the standard. Fatigue Precracking KIc Specimens.

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

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

Likewise this test method does not apply to high toughness or high tearing-resistance materials whose failure is accompanied by appreciable amounts of plasticity. Work Item s – proposed revisions of this standard.

The present test method does not apply to such materials and the user is referred to Test Method E and 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. Specimen E39-90, Configurations, and Preparation see also 1. The first part gives general information concerning the recommenda- tions and requirements for KIc testing.