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BS ISO 29221:2014

Current
Current

The latest, up-to-date edition.

Plastics. Determination of mode I plane-strain crack-arrest toughness
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-31-2014

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Test specimen
7 Procedure
8 Calculation and validation of results
9 Precision
10 Test report
Annex A (informative) - Determination of the initial
        crack length, a[o], when using the chevron notch
Annex B (informative) - Procedure for measuring
        the arrested crack length (a[o])
Annex C (informative) - Fracture surface acceptability
Annex D (informative) - Comment on precision statement
Bibliography

Defines a method for the determination of the plane-strain crack-arrest fracture toughness, K[Ia], of polymeric materials by the use of a side-grooved, crack-line-wedge-loaded compact tension specimen to obtain a rapid run-arrest segment of flat-tensile separation with a satisfactory crack front.

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.

Committee
PRI/21
DevelopmentNote
Supersedes 11/30203571 DC. (01/2014)
DocumentType
Standard
Pages
30
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
ISO 29221:2014 Identical

ISO 18872:2007 Plastics Determination of tensile properties at high strain rates
ISO 13586:2000 Plastics Determination of fracture toughness (GIC and KIC) Linear elastic fracture mechanics (LEFM) approach
ISO 16012:2015 Plastics Determination of linear dimensions of test specimens
ISO 527-1:2012 Plastics Determination of tensile properties Part 1: General principles

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PDF - English
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