Norm

NEN-EN-ISO 15653:2018 en

Metallische materialen - Beproevingsmethode voor de quasistatische bepaling van de breuktaaiheid van lassen

143,10 173,15 Incl BTW

Over deze norm

Status Definitief
Aantal pagina's 46
Commissie Lassen en verwante processen
Gepubliceerd op 01-02-2018
Taal Engels
NEN-EN-ISO 15653 specifies methods for determining fracture toughness in terms of stress intensity factor (K), crack tip opening displacement or CTOD (δ) and experimental equivalent of the J-integral for welds in metallic materials (J). This document complements ISO 12135, which covers all aspects of fracture toughness testing of parent metal and which needs to be used in conjunction with this document. This document describes methods for determining point values of fracture toughness. It should not be considered a way of obtaining a valid R-curve (resistance-to-crack-extension curve). However, the specimen preparation methods described in this document could be usefully employed when determining R-curves for welds. The methods use fatigue precracked specimens which have been notched, after welding, in a specific target area in the weld. Methods are described to evaluate the suitability of a weld for notch placement within the target area, which is either within the weld metal or within the weld heat-affected zone (HAZ), and then, where appropriate, to evaluate the effectiveness of the fatigue crack in sampling these areas.

Details

ICS-code 25.160.40
Nederlandse titel Metallische materialen - Beproevingsmethode voor de quasistatische bepaling van de breuktaaiheid van lassen
Engelse titel Metallic materials - Method of test for the determination of quasistatic fracture toughness of welds
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