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Standard Test Method for Determining a Threshold Stress Intensity Factor for Environment-Assisted Cracking of Metallic Materials (Includes all amendments And changes 8/16/2017).
Automaticky preložený názov:
Štandardná skúšobná metóda pre stanovenie prah stresu intenzity faktorom pre životné prostredie - asistovanej praskanie kovových materiálov
NORMA vydaná dňa 11.8.1999
Označenie normy: ASTM E1681-99e1
Poznámka: NEPLATNÁ
Dátum vydania normy: 11.8.1999
Kód tovaru: NS-42631
Počet strán: 11
Približná hmotnosť: 33 g (0.07 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
aqueous aggressive environment, constant-force test, elastic stress environment-assisted cracking, metallic materials, threshold stress intensity factor, ICS Number Code 91.080.10 (Metal structures)
1. Scope | ||||||||||||||||
1.1 This test method covers the determination of the environment-assisted cracking threshold stress intensity factor parameters, KIEAC and KEAC, for metallic materials from constant-load testing of fatigue precracked beam or compact fracture specimens. 1.2 This test method is applicable to environment-assisted cracking in aqueous or other aggressive environments. 1.3 Materials that can be tested by this test method are not limited by thickness or by strength as long as specimens are of sufficient thickness and planar size to meet the size requirements of this test method. 1.4 A range of specimen sizes with proportional planar dimensions is provided, but size may be variable and adjusted for yield strength and applied load. Specimen thickness is a variable independent of planar size. 1.5 Specimen configurations other than those contained in this test method may be used, provided that well-established stress intensity calibrations are available and that specimen dimensions are of sufficient size to meet the size requirements of this test method during testing. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. 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. |
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2. Referenced Documents | ||||||||||||||||
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