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BS 7448-3:2005

Current
Current

The latest, up-to-date edition.

Fracture mechanics toughness tests Method for determination of fracture toughness of metallic materials at rates of increase in stress intensity factor greater than 3.0 MPa m0.5 s-1
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

08-09-2007

Publisher

British Standards Institution

Committees responsible
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and designations
5 Principle
6 Test specimens
7 Specimen preparation and fatigue precracking
8 Test equipment
9 Test procedure
10 Analysis of test data
11 Check lists for qualification of data
12 Test report
Annex A (informative) Abbreviated method for determination
                      of dynamic fracture toughness of
                      metallic materials
Annex B (informative) Measurement of load-line displacement,
                      q in a three-point bend test
Annex C (normative) Crack plane identification
Annex D (normative) Recommended methods for checking
                      response of transducers and recorders
Annex E (informative) Abbreviated method for determination
                      of dynamic tensile properties of
                      metallic materials
Bibliography

Defines a method for determining the opening mode plane strain fracture toughness K[Ic], the critical crack tip opening displacement (CTOD) fracture toughness and the critical J fracture toughness of metallic materials.

This part of BS 7448 describes a method for determining the opening mode plane strain fracture toughness KIc, the critical crack tip opening displacement (CTOD) fracture toughness and the critical J fracture toughness of metallic materials. The method uses fatigue precracked specimens tested in displacement control at rates of increase in stress intensity factor greater than 3.0 MPa·m0.5sp1 but less than 3 000 MPa·m0.5sp11) during the initial elastic deformation. Stress intensity factors greater than 3 000 MPa·m0.5sp1 are covered in Annex A. These rates are greater than those permitted in BS 7448-1.

The definition of fracture toughness values relevant to particular structural integrity assessments is outside the scope of this British Standard.

NOTE This standard does not cover integrity assessments. Such assessments are covered in BS 7910.

Committee
ISE/101
DevelopmentNote
Supersedes 03/303157 DC. (04/2005) Supersedes BS 6729(1987). (08/2007)
DocumentType
Standard
Pages
62
PublisherName
British Standards Institution
Status
Current
Supersedes

API TR 1PER15K-1 : 2013 PROTOCOL FOR VERIFICATION AND VALIDATION OF HIGH-PRESSURE HIGH-TEMPERATURE EQUIPMENT
DEFSTAN 02-736(PT3)/3(2011) : 2011 REQUIREMENTS FOR Q1 (NAVY) QUALITY STEEL - PART 3: CASTINGS
DEFSTAN 02-736(PT4)/3(2011) : 2011 REQUIREMENTS FOR Q1 (NAVY) QUALITY STEEL - PART 4: ROLLED SECTIONS
DEFSTAN 02-880/1(2012) : 2012 REQUIREMENTS FOR HY100 (UNITED KINGDOM) STEEL PLATES
DEFSTAN 02-736(PT2)/3(2011) : 2011 REQUIREMENTS FOR Q1 (NAVY) QUALITY STEEL - PART 2: FORGINGS
DEFSTAN 02-736(PT1)/3(2011) : 2011 REQUIREMENTS FOR Q1 (NAVY) QUALITY STEEL - PART 1: PLATES

BS 7448-1:1991 Fracture mechanics toughness tests Method for determination of KIc, critical CTOD and critical J values of metallic materials
BS 7910:1999 Guide on methods for assessing the acceptability of flaws in metallic structures
BS EN ISO 12737:2010 Metallic materials. Determination of plane-strain fracture toughness
ISO 6892:1998 Metallic materials Tensile testing at ambient temperature
ISO 15579:2000 Metallic materials Tensile testing at low temperature
BS EN 10002-4:1995 Tensile testing of metallic materials Verification of extensometers used in uniaxial testing
BS 7935-1:2004 Constant amplitude dynamic force calibration Calibration and verification of non-resonant uniaxial dynamic testing systems. Method
BS 7448-2:1997 Fracture mechanics toughness tests Method for determination of KIc, critical CTOD and critical J values of welds in metallic materials
BS 7448-4:1997 Fracture mechanics toughness tests Method for determination of fracture resistance curves and initiation values for stable crack extension in metallic materials
BS EN ISO 7500-1:2015 Metallic materials — Calibration and verification of static uniaxial testing machines Part 1: Tension/compression testing machines — Calibration and verification of the force-measuring system
BS 7935-2:2004 Constant amplitude force calibration Calibration of the calibration device instrumentation to be used for the dynamic calibration of non-resonant uniaxial dynamic testing systems. Method
BS EN 10002-1:2001 Tensile testing of metallic materials Method of test at ambient temperature
ASTM E 813 : 1989 TEST METHOD FOR J1C, A MEASURE OF FRACTURE TOUGHNESS

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