{"id":55078,"date":"2024-10-17T09:48:04","date_gmt":"2024-10-17T09:48:04","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-e1820-4\/"},"modified":"2024-10-24T17:07:08","modified_gmt":"2024-10-24T17:07:08","slug":"astm-e1820-4","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-e1820-4\/","title":{"rendered":"ASTM-E1820"},"content":{"rendered":"<\/p>\n

1.1 This test method covers procedures and guidelines for the determination of fracture toughness of metallic materials using the following parameters: K, J<\/span> , and CTOD ( ?<\/span> ). Toughness can be measured in the R<\/span> -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.<\/p>\n

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.<\/p>\n

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.<\/p>\n

1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.<\/p>\n

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.<\/span><\/p>\n

Note<\/span> 1Other standard methods for the determination of fracture toughness using the parameters K, J<\/span> , and CTOD are contained in Test Methods E 399, E 813, E 1152, E 1290, and E 1737 . This test method was developed to provide a common method for determining all applicable toughness parameters from a single test.<\/span><\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope
Referenced Documents
Terminology <\/td>\n<\/tr>\n
2<\/td>\nFIG. 1 <\/td>\n<\/tr>\n
4<\/td>\nSummary of Test Method
Significance and Use
Apparatus <\/td>\n<\/tr>\n
5<\/td>\nFIG. 2
FIG. 3 <\/td>\n<\/tr>\n
6<\/td>\nSpecimen Size, Configuration, and Preparation
FIG. 4 <\/td>\n<\/tr>\n
7<\/td>\nFIG. 5
FIG. 6 <\/td>\n<\/tr>\n
8<\/td>\nFIG. 7 <\/td>\n<\/tr>\n
9<\/td>\nProcedure <\/td>\n<\/tr>\n
11<\/td>\nAnalysis of Results
Report
Precision and Bias <\/td>\n<\/tr>\n
12<\/td>\nKeywords
FIG. 8 <\/td>\n<\/tr>\n
13<\/td>\nA1. SPECIAL REQUIREMENTS FOR TESTING SINGLE EDGE BEND SPECIMENS
A1.1 Specimen
FIG. 9
FIG. A1.1 <\/td>\n<\/tr>\n
14<\/td>\nA1.2 Apparatus
A1.3
A1.4 Calculation
FIG. A1.2 <\/td>\n<\/tr>\n
15<\/td>\nFIG. A1.3 <\/td>\n<\/tr>\n
16<\/td>\nA2. SPECIAL REQUIREMENTS FOR TESTING COMPACT SPECIMENS
A2.1 Specimen
A2.2 Apparatus
A2.3 Specimen Preparation
A2.4 Calculation <\/td>\n<\/tr>\n
17<\/td>\nFIG. A2.1 <\/td>\n<\/tr>\n
18<\/td>\nFIG. A2.2 <\/td>\n<\/tr>\n
19<\/td>\nFIG. A2.3 <\/td>\n<\/tr>\n
20<\/td>\nA3. SPECIAL REQUIREMENTS FOR TESTING DISK-SHAPED COMPACT SPECIMENS
A3.1 Specimen
A3.2 Apparatus
A3.3 Specimen Preparation
A3.4 Procedure
FIG. A3.1 <\/td>\n<\/tr>\n
21<\/td>\nA3.5 Calculation <\/td>\n<\/tr>\n
22<\/td>\nA4. METHODS FOR EVALUATING INSTABILITY AND POP-IN
A4.1 Assessment of Force\/Clip Gage Displacement Records <\/td>\n<\/tr>\n
23<\/td>\nFIG. A4.1
FIG. A4.2 <\/td>\n<\/tr>\n
24<\/td>\nA5. METHOD FOR KIc DETERMINATION
A5.1
A5.2
A5.3
FIG. A4.3
FIG. A5.1 <\/td>\n<\/tr>\n
25<\/td>\nA5.4
A5.5
A6. FRACTURE INSTABILITY TOUGHNESS DETERMINATION USING J
A6.1
A6.2 <\/td>\n<\/tr>\n
26<\/td>\nA6.3
A6.4
A7. FRACTURE INSTABILITY TOUGHNESS DETERMINATION USING CTOD ()
A7.1
A7.2
A7.3
A8. J-R CURVE DETERMINATION
A8.1
A8.2 <\/td>\n<\/tr>\n
27<\/td>\nA8.3
A8.4
A9. JIc and KJIc EVALUATION
A9.1
A9.2
FIG. A8.1 <\/td>\n<\/tr>\n
28<\/td>\nA9.3
A9.4
A9.5
A9.6
FIG. A9.1 <\/td>\n<\/tr>\n
29<\/td>\nA9.7
A9.8
A9.9
A9.10 Evaluation of KJIc
A10. METHOD FOR -R CURVE DETERMINATION
A10.1
A10.2
FIG. A9.2 <\/td>\n<\/tr>\n
30<\/td>\nA10.3
A10.4
A11. METHOD FOR Ic DETERMINATION
A11.1
A11.2
A11.3
A11.4
A11.5
A11.6
FIG. A10.1 <\/td>\n<\/tr>\n
31<\/td>\nFIG. A11.1
FIG. A11.2 <\/td>\n<\/tr>\n
32<\/td>\nA11.7
A11.8
A11.9
A12. COMMON EXPRESSIONS
A12.1
A12.2 <\/td>\n<\/tr>\n
33<\/td>\nA13. METHOD FOR RAPID LOADING KIc DETERMINATION
A13.1
A13.2
A13.3
A13.4
TABLE A12.1
TABLE A12.2 <\/td>\n<\/tr>\n
34<\/td>\nA13.5
A13.6 <\/td>\n<\/tr>\n
35<\/td>\nA14. SPECIAL REQUIREMENTS FOR RAPID-LOAD J-INTEGRAL FRACTURE TOUGHNESS TESTING <\/p>\n

A14.1 Scope
A14.2 Summary of Requirements
FIG. A13.1
FIG. A13.2 <\/td>\n<\/tr>\n

36<\/td>\nA14.3. Terminology
A14.4 Significance and Use
A14.5 Apparatus <\/td>\n<\/tr>\n
37<\/td>\nFIG. A14.1
FIG. A14.2 <\/td>\n<\/tr>\n
38<\/td>\nFIG. A14.3 <\/td>\n<\/tr>\n
39<\/td>\nFIG. A14.4 <\/td>\n<\/tr>\n
40<\/td>\nFIG. A14.5
FIG. A14.6 <\/td>\n<\/tr>\n
41<\/td>\nA14.6 Procedure
A14.7 Qualification of the Data
A14.8 Qualifying the High Rate Results
A14.9 Report <\/td>\n<\/tr>\n
42<\/td>\nA14.10 Precision and Bias
A15. NORMALIZATION DATA REDUCTION TECHNIQUE
A15.1 Scope
A15.2 Analysis
FIG. A14.7 <\/td>\n<\/tr>\n
43<\/td>\nFIG. A15.1 <\/td>\n<\/tr>\n
44<\/td>\nFIG. A15.2
FIG. A15.3 <\/td>\n<\/tr>\n
45<\/td>\nA15.3 Additional Requirements
A15.4 Report
FIG. A15.4 <\/td>\n<\/tr>\n
46<\/td>\nA15.5 Precision and Bias
A16. EVALUATION OF CRACK GROWTH CORRECTED J-INTEGRAL VALUES
A16.1 J Correction Procedure
FIG. A15.5 <\/td>\n<\/tr>\n
47<\/td>\nX1. EXAMPLE
X1.1
X1.2
REFERENCES <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

E1820-08 Standard Test Method for Measurement of Fracture Toughness<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2008<\/td>\n48<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":55079,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1088,2637],"product_tag":[],"class_list":{"0":"post-55078","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-77-040-10","7":"product_cat-astm","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/55078","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/55079"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=55078"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=55078"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=55078"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}