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Standard Practice for Acoustic Emission Examination of Reinforced Thermosetting Resin Pipe (RTRP)
Automaticky preložený názov:
Štandardné praktiky pre akustické emisie vyšetrenie z vystuženého živicou tvrditeľný teplom rúrky (RTRP)
NORMA vydaná dňa 1.1.2011
Označenie normy: ASTM E1118/E1118M-11
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.1.2011
Kód tovaru: NS-40498
Počet strán: 12
Približná hmotnosť: 36 g (0.08 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
adhesive joints, Felicity effect, Felicity ratio, FRP pipe, load hold, RTRP, zone location, Acoustic emission (AE) testing--plastics, Adhesive joints, Calibration--acoustic emission analysis instrumentation, Carbon fiber reinforced pipe, Felicity effect/ratio, Fiberglass-reinforced plastics (FRP), Load hold, Noise level measurement, Piping systems, Plastic-lined ferrous metal pipe/fittings/flanges, Pressure testing--plastic pipe/tube, Reinforced thermosetting-resin pipe (RTRP), Resins
Significance and Use | ||||||||||||||||||||||||
The AE examination method detects damage in RTRP. The damage mechanisms detected in RTRP are as follows: resin cracking, fiber debonding, fiber pullout, fiber breakage, delamination, and bond or thread failure in assembled joints. Flaws in unstressed areas and flaws which are structurally insignificant will not generate AE. This practice is convenient for on-line use under operating conditions to determine structural integrity of in-service RTRP usually with minimal process disruption. Flaws located with AE should be examined by other techniques; for example, visual, ultrasound, and dye penetrant, and may be repaired and retested as appropriate. Repair procedure recommendations are outside the scope of this practice. |
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1. Scope | ||||||||||||||||||||||||
1.1 This practice covers acoustic emission (AE) examination or monitoring of reinforced thermosetting resin pipe (RTRP) to determine structural integrity. It is applicable to lined or unlined pipe, fittings, joints, and piping systems. 1.2 This practice is applicable to pipe that is fabricated with fiberglass and carbon fiber reinforcements with reinforcing contents greater than 15 % by weight. The suitability of these procedures must be demonstrated before they are used for piping that is constructed with other reinforcing materials. 1.3 This practice is applicable to tests below pressures of 35 MPa absolute [5000 psia]. 1.4 This practice is limited to pipe up to and including 0.6 m [24 in.] in diameter. Larger diameter pipe can be examined with AE, however, the procedure is outside the scope of this practice. 1.5 This practice applies to examinations of new or in-service RTRP. 1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.7 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 to determine the applicability of regulatory limitations prior to use. For more specific safety precautionary information see 8.1. |
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2. Referenced Documents | ||||||||||||||||||||||||
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