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Homepage>BS ISO 29221:2014 Plastics. Determination of mode I plane-strain crack-arrest toughness
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sklademVydáno: 2014-01-31
BS ISO 29221:2014 Plastics. Determination of mode I plane-strain crack-arrest toughness

BS ISO 29221:2014

Plastics. Determination of mode I plane-strain crack-arrest toughness

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Označení normy:BS ISO 29221:2014
Počet stran:30
Vydáno:2014-01-31
ISBN:978 0 580 67823 3
Status:Standard
DESCRIPTION

BS ISO 29221:2014


This standard BS ISO 29221:2014 Plastics. Determination of mode I plane-strain crack-arrest toughness is classified in these ICS categories:
  • 83.080.01 Plastics in general

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.