{"id":40995,"date":"2024-10-17T06:03:31","date_gmt":"2024-10-17T06:03:31","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-e647-2005\/"},"modified":"2024-10-24T15:30:31","modified_gmt":"2024-10-24T15:30:31","slug":"astm-e647-2005","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-e647-2005\/","title":{"rendered":"ASTM-E647 2005"},"content":{"rendered":"

ASTM E647-05<\/h3>\n

Historical Standard: Standard Test Method for Measurement of Fatigue Crack Growth Rates<\/h4>\n
\n

ASTM E647<\/h4>\n

Scope<\/strong><\/p>\n

1.1 This test method\u00b2 covers the determination of fatigue crack growth rates from near-threshold to K<\/i>max controlled instability. Results are expressed in terms of the crack-tip stress-intensity factor range (\u0394 K<\/i>), defined by the theory of linear elasticity.<\/p>\n

1.2 Several different test procedures are provided, the optimum test procedure being primarily dependent on the magnitude of the fatigue crack growth rate to be measured.<\/p>\n

1.3 Materials that can be tested by this test method are not limited by thickness or by strength so long as specimens are of sufficient thickness to preclude buckling and of sufficient planar size to remain predominantly elastic during testing.<\/p>\n

1.4 A range of specimen sizes with proportional planar dimensions is provided, but size is variable to be adjusted for yield strength and applied force. Specimen thickness may be varied independent of planar size.<\/p>\n

1.5 The details of the various specimens and test configurations are shown in Annex A1-Annex A3. Specimen configurations other than those contained in this method may be used provided that well-established stress-intensity factor calibrations are available and that specimens are of sufficient planar size to remain predominantly elastic during testing.<\/p>\n

1.6 Residual stress\/crack closure may significantly influence the fatigue crack growth rate data, particularly at low stress-intensity factors and low stress ratios, although such variables are not incorporated into the computation of \u0394K<\/i>.<\/p>\n

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

1.8 This test method is divided into two main parts. The first part gives general information concerning the recommendations and requirements for fatigue crack growth rate testing. The second part is composed of annexes that describe the special requirements for various specimen configurations, special requirements for testing in aqueous environments, and procedures for non-visual crack size determination. In addition, there are appendices that cover techniques for calculating da\/dN, determining fatigue crack opening force, and guidelines for measuring the growth of small fatigue cracks. General information and requirements common to all specimen types are listed as follows:<\/p>\n

Appendix X2 <\/p>\n

1.9 Special requirements for the various specimen configurations appear in the following order:<\/p>\n

1.10 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.<\/i><\/p>\n

Keywords<\/strong><\/p>\n

constant amplitude; crack size; fatigue crack growth rate; stress intensity factor range<\/p>\n

ICS Code<\/strong><\/p>\n

ICS Number Code 77.040.10 (Mechanical testing of metals)<\/p>\n

DOI:<\/strong> 10.1520\/E0647-05<\/p>\n<\/div>\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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope
Referenced Documents <\/td>\n<\/tr>\n
2<\/td>\nTerminology <\/td>\n<\/tr>\n
3<\/td>\nSummary of Test Method
Significance and Use <\/td>\n<\/tr>\n
4<\/td>\nApparatus
Specimen Configuration, Size, and Preparation <\/td>\n<\/tr>\n
5<\/td>\nProcedure
FIG. 1 <\/td>\n<\/tr>\n
7<\/td>\nFIG. 2 <\/td>\n<\/tr>\n
9<\/td>\nCalculation and Interpretation of Results
Report
FIG. 3 <\/td>\n<\/tr>\n
10<\/td>\nPrecision and Bias <\/td>\n<\/tr>\n
11<\/td>\nKeywords
A1. THE COMPACT TENSION SPECIMEN
A1.1 Introduction
A1.2 Specimen
FIG. A1.1 <\/td>\n<\/tr>\n
12<\/td>\nA1.3 Apparatus
A1.4 Procedure
FIG. A1.2 <\/td>\n<\/tr>\n
13<\/td>\nA1.5 Calculation and Interpretation of Results
FIG. A1.3
FIG. A1.3 <\/td>\n<\/tr>\n
14<\/td>\nFIG. A1.4
FIG. A1.5 <\/td>\n<\/tr>\n
15<\/td>\nA2. THE MIDDLE TENSION SPECIMEN
A2.1 Introduction
A2.2 Specimen Configuration, Size, and Preparation
A2.3 Apparatus
FIG. A2.1 <\/td>\n<\/tr>\n
16<\/td>\nA2.4 Procedure
A2.5 Calculation and Interpretation of Results <\/td>\n<\/tr>\n
17<\/td>\nFIG. A2.2
TABLE A2.2 <\/td>\n<\/tr>\n
18<\/td>\nFIG. A2.3
FIG. A2.3
FIG. A2.4 <\/td>\n<\/tr>\n
19<\/td>\nA3. THE ECCENTRICALLY-LOADED SINGLE EDGE CRACK TENSION SPECIMEN
A3.1 Introduction
A3.2 Specimen
A3.3 Apparatus
A3.4 Procedure
A3.5 Calculations
FIG. A3.1 <\/td>\n<\/tr>\n
20<\/td>\nA4. SPECIAL REQUIREMENTS FOR TESTING IN AQUEOUS ENVIRONMENTS
A4.1 Introduction
A4.2 Scope
A4.3 Referenced Documents
A4.4 Terminology
A4.5 Significance and Use <\/td>\n<\/tr>\n
21<\/td>\nA4.6 Apparatus
A4.7 Procedure <\/td>\n<\/tr>\n
22<\/td>\nA4.8 Report
A5. GUIDELINES FOR USE OF COMPLIANCE TO DETERMINE CRACK SIZE
A5.1
A5.2
A5.3
A5.4
A5.5
A5.6 <\/td>\n<\/tr>\n
23<\/td>\nA5.7
A6. GUIDELINES FOR ELECTRIC POTENTIAL DIFFERENCE DETERMINATION OF CRACK SIZE
A6.1
A6.2
A6.3 <\/td>\n<\/tr>\n
24<\/td>\nFIG. A6.1
FIG. A6.2 <\/td>\n<\/tr>\n
25<\/td>\nA6.4
A6.5
A6.6 <\/td>\n<\/tr>\n
26<\/td>\nA6.7
A6.8
A6.9 <\/td>\n<\/tr>\n
27<\/td>\nA6.10
A6.11
A6.12 <\/td>\n<\/tr>\n
28<\/td>\nX1. RECOMMENDED DATA REDUCTION TECHNIQUES
X1.1 Secant Method
X1.2 Incremental Polynomial Method <\/td>\n<\/tr>\n
32<\/td>\nX2. RECOMMENDED PRACTICE FOR DETERMINATION OF FATIGUE CRACK OPENING FORCE FROM COMPLIANCE
X2.1 Introduction
X2.2 Scope <\/td>\n<\/tr>\n
33<\/td>\nX2.3 Terminology
X2.4 Significance and Use
X2.5 Basis for Determination of Opening Force From Compliance
X2.6 Apparatus
X2.7 Recommended Procedure\u2014Determination of Opening Force by the Compliance Offset Method <\/td>\n<\/tr>\n
34<\/td>\nFIG. X2.1
FIG. X2.2
FIG. X2.3 <\/td>\n<\/tr>\n
35<\/td>\nX2.8 Data Quality Requirement
X2.9 Report
X3. GUIDELINES FOR MEASURING THE GROWTH RATES OF SMALL FATIGUE CRACKS
X3.1 Introduction
FIG. X2.4 <\/td>\n<\/tr>\n
36<\/td>\nX3.2 Scope
X3.3 Referenced Documents
X3.4 Terminology
X3.5 Significance and Use
TABLE X3.1 <\/td>\n<\/tr>\n
37<\/td>\nFIG. X3.1 <\/td>\n<\/tr>\n
38<\/td>\nX3.6 Apparatus <\/td>\n<\/tr>\n
39<\/td>\nX3.7 Specimen Configuration and Preparation
FIG. X3.2 <\/td>\n<\/tr>\n
40<\/td>\nX3.8 Procedure
X3.9 Calculation and Interpretation <\/td>\n<\/tr>\n
41<\/td>\nX3.10 Reporting
X3.11 Precision and Bias <\/td>\n<\/tr>\n
42<\/td>\nREFERENCES <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

E647-05 Standard Test Method for Measurement of Fatigue Crack Growth Rates<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2005<\/td>\n45<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":40996,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1088,2637],"product_tag":[],"class_list":{"0":"post-40995","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\/40995","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\/40996"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=40995"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=40995"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=40995"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}