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BSI BS ISO 29221:2014

Plastics. Determination of mode I plane-strain crack-arrest toughness
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BSI BS ISO 29221:2014

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

PUBLISH DATE 2014
PAGES 30
BSI BS ISO 29221:2014

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.

SDO BSI: British Standards Institution
Document Number ISO 29221
Publication Date Jan. 31, 2014
Language en - English
Page Count
Revision Level
Supercedes
Committee PRI/21
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