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

Compact Specimen Loading Clevis. Standard and Alternative Specimen E939-90. Apparatus see also 1. 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.

Compact Specimen C T. The first part gives general recommendations and requirements for K Ic testing. Fatigue Crack Starter Notches.

Historical Version s – view previous versions of standard. Guidance on testing elastic-plastic materials is given in Test Method E Fatigue Precracking KIc Specimens. The orientation of the crack plane should be identified wherever possible in accordance with the following systems Link to Active This link will always route to the current Active version of the standard. 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.


The details of the various specimen and test configurations are shown in Annexes A1 through A7 and A9.

Crack extension under cyclic or sustained forces as by stress corrosion cracking or creep crack growth can be influenced by temperature and environment. General information and requirements common to all specimen types are listed as follows:. Enviado por Giulio flag Denunciar.

Last previous edition E — Details of test apparatus, specimen configuration, and experimental procedure are given in the Annexes. 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. In addition, the product form should be identified for example, straight-rolled plate, cross-rolled plate, pancake forging, etc.

Active view current version of standard.

E39-90 annexes are provided that give specific procedures for beryllium and rapid-force testing. Crack Extension Beyond Starter Notch. The values given in parentheses are for information only. Likewise this test method does not apply to high toughness or high tearing-resistance materials whose failure is accompanied by appreciable amounts of plasticity.


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

Therefore, compliance with the specified validity criteria of this test method is essential. Calculation and Interpretation of Results. Summary of Test Method. Note 1-Plane-strain fracture toughness tests of thinner materials that are sufficiently brittle see 7.

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

The present test method does not apply to such materials and the user is referred to Test Method E and E E399-0 first part gives general information concerning the recommenda- tions and requirements for KIc testing.

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.

The first part gives general information concerning the recommendations and requirements for Ic testing. There is no standard test method for testing such thin materials.

A superscript epsilon e indicates an editorial change since the last revision or reapproval. Fatigue Precracking see also 1. Specimen Size, Configurations, and Preparation see also 1.