BS 8571:2018 – TC:2020 Edition
$186.33
Tracked Changes. Method of test for determination of fracture toughness in metallic materials using single edge notched tension (SENT) specimens
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 68 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 42 | Foreword |
| 45 | 1 Scope 2 Normative references 3 Terms, definitions and symbols |
| 46 | 4 Principle |
| 47 | 5 Test sample and test specimen preparation 5.1 Test sample 5.2 Test specimen |
| 48 | Figure 1 — Flowchart showing how to use the standard |
| 49 | Figure 2 — SENT test specimen configuration |
| 51 | Figure 3 — W/B ratios in SENT test specimens |
| 52 | Figure 4 — Machining tolerances and surface finish for a SENT specimen 5.3 Notching |
| 53 | Figure 5 — Crack plane orientation code for fracture toughness specimens of parent metal and weld metal |
| 54 | 5.4 Fatigue pre-cracking 6 Test procedure 6.1 Measurements during testing |
| 55 | Figure 6 — Example knife edges and notch geometries 6.2 Test specimen temperature |
| 56 | 6.3 Testing rate 6.4 Post-test measurements 7 Determination of resistance curves δ–Δa and J–Δa 7.1 General 7.2 Multiple specimen method |
| 57 | 7.3 Single specimen methods 7.4 Calculating J |
| 58 | Figure 7 — Determination of Up, Vp and Ve |
| 60 | 7.5 Calculating CTOD |
| 61 | Figure 8 — Determination of CTOD (δ) from the double clip gauge arrangement 7.6 Definition of the R-curve |
| 62 | Figure 9 — Fitting the R-curve to the SENT crack extension data 7.7 Assessment of pop-ins 8 Determination of single point fracture toughness |
| 63 | 9 Test data qualification 9.1 Checklist for qualification 9.2 Test report |
| 64 | Annex A (informative) Guidance for stable crack path deviation during ductile crack extension |
| 65 | Annex B (informative) Guidance for using non-fatigue pre-cracked specimens Annex C (informative) Example calculation of J and CTOD for SENTs |
| 67 | Bibliography |
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BS 8571:2018
Method of test for determination of fracture toughness in metallic materials using single edge notched…
