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BS ISO 26843:2015 Metallic materials. Measurement of fracture toughness at impact loading rates using precracked Charpy-type test pieces >
BS ISO 26843:2015 Metallic materials. Measurement of fracture toughness at impact loading rates using precracked Charpy-type test pieces, 2015
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Symbols
- 4 Principle
- 5 Test specimens
- 6 Testing machines
- 7 Test procedures and measurements
- 7.1 General
- 7.2 Impact velocity
- 7.3 Time to fracture
- 7.4 Multiple specimen tests
- 7.5 Single-specimen tests
- 7.6 Post-test crack length measurements
- 8 Evaluation of fracture mechanics parameters
- 9 Test report
- 9.1 Organization
- 9.2 Specimen, material, and test environment
- 9.2.1 Specimen description
- 9.2.2 Specimen dimensions
- 9.2.3 Material description
- 9.2.4 Test environment
- 9.3 Fatigue precracking conditions
- 9.4 Test data qualification
- 9.4.1 Limitations
- 9.4.2 Crack length measurements
- 9.4.3 Fracture surface appearance
- 9.4.4 Resistance curves
- 9.4.5 Checklist for data qualification
- 9.5 Test results
- Annex A (normative) Test machines suitable for each test procedure
- Annex B (informative) Estimation of strain rate
- Annex C (normative) Dynamic evaluation of fracture toughness
- Annex D (normative) Determination of resistance curves at impact loading rates by multiple specimen methods
- Annex E (normative) Estimation of Jd-Δa R-curves using the normalization method
- Annex F (normative) Determination of characteristic fracture toughness value J0,2Bd
- Annex G (normative) Validity criteria
- Annex H (normative) Determination of fracture toughness in terms of J-integral
- Annex I (informative) Example test reports
- Bibliography [Go to Page]