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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General information and requirements common to all specimen types are listed as follows:. Note 1-Plane-strain fracture toughness tests of thinner atm that are sufficiently brittle see 7.
Enviado por Giulio flag Denunciar. Additional annexes are provided that give specific procedures for beryllium and rapid-force testing. Bend Specimen Loading Fixture. The orientation of the crack plane should be identified wherever possible in accordance with the following systems Crack Asmt Beyond Starter Notch. It is the responsibility of the user of w399-90 standard to establish appro- priate safety and health practices and determine the applica- bility of regulatory limitations prior to use.
Plane-strain fracture toughness tests of thinner materials that are sufficiently brittle see 7. Fatigue Precracking see also 1. Summary of Test Method. The specification of K Ic values in relation to a particular application should signify that a fracture control atm has been conducted for the component in relation to the e399–90 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.
The first part gives general information concerning the recommenda- tions and requirements for KIc testing. NOTE 1—Plane-strain fracture toughness tests of thinner materials that are sufficiently brittle see 7.
Work Item s – proposed revisions of this standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Compact Specimen Loading Clevis. In addition, an annex is provided for the specific procedures to be followed in rapid-load plane-strain fracture toughness tests. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. The values given in parentheses are for information only. The present test method does not apply to such materials and the user is referred to Test Method E and E Fatigue Precracking KIc Specimens.
ASTM E399 (Standard Test Method for Plane Strain Fracture Toughness for Metallic Materials)
Apparatus see also 1. 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.
This strength ratio is a function of the maximum load the specimen can qstm, its initial dimensions and the yield strength of the material. A number in parentheses indicates the year of last reapproval. Specimen Size Validity Requirements.
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, when K F399-90 is applied to the design of service components, differences between laboratory test and field conditions shall be considered.
Calculation and Interpretation of Results. Standard and Alternative Specimen Configurations.
Link to Active This link will always route to the current Active version of the standard. Current edition approved Nov.
ASTM E Standard Test Method for Plane-Strain Fracture – Google Books
Active view current version of standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Likewise this test method does not apply to high toughness or high tearing-resistance materials whose failure is accompanied by appreciable amounts of plasticity.
This standard has been approved for use by agencies of the Department of Defense. Originally published as E — 70 T. 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.
Specimen Size, Configurations, and Preparation see also 1. The first part gives general recommendations and requirements for K Ic 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.
Compact Specimen C T. K Ic may also be expected to rise with increasing ligament size. Guide B provides supplementary guidelines for plane strain fracture toughness testing of aluminum alloy products for which complete stress relief is not practicable. It 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.