ASTM-E1820:2001 Edition
$63.38
E1820-01 Standard Test Method for Measurement of Fracture Toughness
Published By | Publication Date | Number of Pages |
ASTM | 2001 | 46 |
1.1 This test method covers procedures and guidelines for the determination of fracture toughness of metallic materials using the following parameters: K, J , and CTOD. Toughness can be measured in the R -curve format or as a point value. The fracture toughness determined in accordance with this test method is for the opening mode (Mode I) of loading.
1.2 The recommended specimens are single-edge bend, [SE(B)], compact, [C(T)], and disk-shaped compact, [DC(T)]. All specimens contain notches that are sharpened with fatigue cracks.
1.2.1 Specimen dimensional (size) requirements vary according to the fracture toughness analysis applied. The guidelines are established through consideration of material toughness, material flow strength, and the individual qualification requirements of the toughness value per values sought.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Note 1–Other standard methods for the determination of fracture toughness using the parameters K, J , and CTOD are contained in Test Methods E399, E813, E1152, E1290, and E1737. This test method was developed to provide a common method for determining all applicable toughness parameters from a single test.
PDF Catalog
PDF Pages | PDF Title |
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1 | Scope Referenced Documents Terminology |
3 | Summary of Test Method |
4 | Significance and Use Apparatus |
5 | FIG. 1 FIG. 2 |
6 | Specimen Size, Configuration, and Preparation FIG. 4 FIG. 3 |
7 | FIG. 5 |
8 | Procedure FIG. 6 |
10 | Analysis of Results Report |
11 | Precision and Bias Keywords FIG. 7 |
12 | A1. SPECIAL REQUIREMENTS FOR TESTING SINGLE EDGE BEND SPECIMENS A1.1 Specimen A1.2 Apparatus A1.3 A1.4 Calculation FIG. 8 |
13 | FIG. A1.1 FIG. A1.2 FIG. A1.3 |
14 | A2. SPECIAL REQUIREMENTS FOR TESTING COMPACT SPECIMENS A2.1 Specimen A2.2 Apparatus A2.3 Specimen Preparation A2.4 Calculation |
15 | FIG. A2.1 |
16 | FIG. A2.2 |
17 | FIG. A2.3 |
18 | A3. SPECIAL REQUIREMENTS FOR TESTING DISK-SHAPED COMPACT SPECIMENS A3.1 Specimen A3.2 Apparatus A3.3 Specimen Preparation A3.4 Procedure FIG. A3.1 |
19 | A3.5 Calculation |
20 | A4. METHODS FOR EVALUATING INSTABILITY AND POP-IN A4.1 |
21 | A5. METHOD FOR KIc DETERMINATION A5.1 A5.2 A5.3 FIG. A4.1 |
22 | A5.4 A5.5 FIG. A5.1 |
23 | A6. FRACTURE INSTABILITY TOUGHNESS DETERMINATION USING J A6.1 A6.2 A6.3 A6.4 A7. FRACTURE INSTABILITY TOUGHNESS DETERMINATION USING CTOD () A7.1 A7.2 A7.3 FIG. A6.1 |
24 | A7.4 A8. J-R CURVE DETERMINATION A8.1 A8.2 A8.3 A8.4 |
25 | A9. JIc and KJIc EVALUATION A9.1 A9.2 A9.3 A9.4 A9.5 A9.6 FIG. A8.1 |
26 | A9.7 FIG. A9.1 FIG. A9.2 |
27 | A9.8 A9.9 A9.10 Evaluation of KJIc A10. METHOD FOR -R CURVE DETERMINATION A10.1 A10.2 A10.3 A10.4 FIG. A10.1 |
28 | A11. METHOD FOR Ic DETERMINATION A11.1 A11.2 A11.3 A11.4 A11.5 A11.6 FIG. A11.1 |
29 | A11.7 A11.8 A11.9 A12. COMMON EXPRESSIONS A12.1 A12.2 FIG. A11.2 |
30 | A13. METHOD FOR RAPID LOADING KIc DETERMINATION A13.1 A13.2 A13.3 TABLE A12.1 TABLE A12.2 |
31 | A13.4 A13.5 A13.6 |
32 | FIG. A13.1 FIG. A13.2 |
33 | A14. SPECIAL REQUIREMENTS FOR RAPID-LOAD J-INTEGRAL FRACTURE TOUGHNESS TESTING
A14.1 Scope |
34 | FIG. A14.1 |
35 | FIG. A14.2 FIG. A14.3 |
36 | A14.6 Procedure FIG. A14.4 |
37 | A14.7 Qualification of the Data FIG. A14.5 |
38 | A14.8 Qualifying the High Rate Results A14.9 Report A14.10 Precision and Bias FIG. A14.6 |
39 | A15. NORMALIZATION DATA REDUCTION TECHNIQUE A15.1 Scope A15.2 Analysis FIG. A14.7 |
40 | A15.3 Additional Requirements FIG. A15.1 |
41 | A15.4 Report A15.5 Precision and Bias FIG. A15.2 |
42 | FIG. A15.3 |
43 | FIG. A15.4 FIG. A15.5 |
44 | X1. BASIC CODE EXAMPLE X1.1 X1.2 FIG. X1.1 FIG. X1.1 |
45 | REFERENCES FIG. X1.1 |