Norm

NEN-ISO 29221:2014 en

Kunststoffen - Bepaling van de barstweerstand bij oppervlaktedeformatie (Mode I)

106,87

Over deze norm

Status Definitief
Aantal pagina's 19
Commissie Kunststoffen
Gepubliceerd op 01-01-2014
Taal Engels
This International Standard specifies a method for the determination of the plane-strain crack-arrest fracture toughness, Kla, of polymeric materials by using a side-grooved, crack-line-wedge-loaded compact tension specimen to obtain a rapid crack run-arrest segment of flat-tensile separation with a satisfactory crack front. This International Standard employs a static fracture analysis determination of the stress intensity factor at a short time after crack arrest. The estimate is denoted as Ka and when certain size requirements are met, the test result provides an estimate, termed as Kla, of the plane-strain crack-arrest toughness of the polymer. The specimen size requirements provide for in-plane dimensions large enough to allow the specimen to be modelled by linear elastic analysis. If the specimen does not exhibit rapid crack propagation and arrest, Ka cannot be determined.

Details

ICS-code 83.080.01
Nederlandse titel Kunststoffen - Bepaling van de barstweerstand bij oppervlaktedeformatie (Mode I)
Engelse titel Plastics - Determination of mode I plane-strain crack-arrest toughness

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