ASTM E1761-95(1999)
(Guide)Standard Guide for Recommended Formats for Data Records Used in Computerization of Fatigue and Fracture Data of Metals (Withdrawn 2008)
Standard Guide for Recommended Formats for Data Records Used in Computerization of Fatigue and Fracture Data of Metals (Withdrawn 2008)
SCOPE
1.1 This guide covers recommended formats for the recording of fatigue and fracture test data for inclusion in computerized material property databases. From this information, the database designer should be able to construct the data dictionary preparatory to developing a database schema. Not covered within the scope of this guide are guidelines for the identification of the materials themselves, or descriptions of the materials, or both. Those guidelines are covered in separate standards, such as Guides E1338 and E1339.
1.2 The recommended format specified in this guide is suggested for use in recording data in a database, that is different from contractual reporting of actual test results for a specific lot of material. The latter type of information is specified in materials specifications shown in business transactions and is subject to agreement between supplier and purchaser.
1.3 This guide is specific to plane-strain fracture toughness test data based on Test Method E399, fatigue crack growth rate test data based on Test Method E647, and strain-controlled fatigue testing based on Practice E606.
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.
WITHDRAWN RATIONALE
Formerly under the jurisdiction of Committee E08 on Fatigue and Fracture, this guide was withdrawn in January 2008 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.
General Information
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E 1761 – 95 (Reapproved 1999)
Standard Guide for
Recommended Formats for Data Records Used in
Computerization of Fatigue and Fracture Data of Metals
This standard is issued under the fixed designation E 1761; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope E 606 Practice for Constant-Amplitude Low-Cycle Fatigue
Testing
1.1 This guide covers recommended formats for the record-
E 616 Terminology Relating to Fracture Testing
ing of fatigue and fracture test data for inclusion in computer-
E 647 Test Method for Measurement of Fatigue Crack
ized material property databases. From this information, the
Growth Rates
database designer should be able to construct the data dictio-
E 1012 Practice for Verification of Specimen Alignment
narypreparatorytodevelopingadatabaseschema.Notcovered
Under Tensile Loading
within the scope of this guide are guidelines for the identifi-
E 1013 Terminology Relating to Computerized Systems
cation of the materials themselves, or descriptions of the
E 1338 Guide for the Identification of Metals andAlloys in
materials, or both. Those guidelines are covered in separate
Computerized Material Property Databases
standards, such as Guides E 1338 and E 1339.
E 1339 Guide for Identification of Aluminum Alloys and
1.2 The recommended format specified in this guide is
Parts in Computerized Material Property Databases
suggested for use in recording data in a database, that is
E 1443 Terminology Relating to Building and Accessing
different from contractual reporting of actual test results for a
Material and Chemical Database
specific lot of material. The latter type of information is
2.2 Other Standard:
specified in materials specifications shown in business trans-
BS 6835 (1988)
actions and is subject to agreement between supplier and
purchaser.
3. Terminology
1.3 This guide is specific to plane-strain fracture toughness
3.1 Definitions:
testdatabasedonTestMethodE 399,fatiguecrackgrowthrate
3.1.1 Computer-related technical terms in this guide are
test data based on Test Method E 647, and strain-controlled
defined in Terminologies E 1443, E 1013, and other standards
fatigue testing based on Practice E 606.
referenced in those terminologies.
1.4 This standard does not purport to address all of the
3.1.2 Technical terms related to fracture testing procedures
safety concerns, if any, associated with its use. It is the
are defined in Terminology E 616.
responsibility of the user of this standard to establish appro-
3.1.3 Technical terms related to mechanical testing and
priate safety and health practices and determine the applica-
mechanical procedures are defined in Terminology E 6.
bility of regulatory limitations prior to use.
4. Significance and Use
2. Referenced Documents
4.1 Because of the intense activity in building computerized
2.1 ASTM Standards:
materials databases and the desire to encourage uniformity and
E 6 Terminology Relating to Methods of Mechanical Test-
2 ease data comparison and data interchange, these recom-
ing
mended formats provide for the inclusion of specific elements
E 83 Practice for Verification and Classification of Exten-
2 of test data in such databases.
someters
4.2 This guide defines the principal data elements that are
E 380 Practice for Use of the International System of Units
3 considered important and worth recording and storing perma-
(SI)
nently in computerized data storage systems from which
E 399 Test Method for Plane-Strain Fracture Toughness of
2 machine-readable databases will be developed. These data
Metallic Materials
This guide is under the jurisdiction of ASTM Committee E08 on Fatigue and
Fracture and is the direct responsibility of Subcommittee E08.02 on Standards and
Terminology.
Current edition approved Nov. 10, 1995. Published February 1996.
2 4
Annual Book of ASTM Standards, Vol 03.01. Annual Book of ASTM Standards, Vol 14.01.
3 5
Annual Book of ASTM Standards, Vol 14.02. Discontinued. See 1996 Annual Book of ASTM Standards, Vol 14.01.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
E 1761 – 95 (1999)
elements are not intended to be requirements of any specific or long as the essential data elements are included (the items
single database, but if available, are likely to be valuable for noted by the asterisks).
building databases for various applications and so should be 4.6.6 In some cases, additional data elements of value to
recorded and stored in the primary data storage file. users of a database may be available. In those cases, databases
builders are encouraged to include them with the data elements
4.3 This guide has no implication on data required for
in the recommended formats.
materials production or purchase. Reporting of actual test
4.7 The recommended data recording formats do not in-
results shall be as described in the actual material specification
clude the recommended material description or the presenta-
or as agreed to by the supplier and purchaser as shown on the
tion of other specific types of test data. This information is
purchase order and acknowledgment.
covered by other recommended formats, including Guides
4.4 This guide is designed to encourage the builders of
E 1338 and E 1339.
databases to include sufficiently complete information so that
comparisons among individual sources may be made with
5. Recording of Test Data
ensurance that similarities and differences in the test proce-
5.1 The following types of data elements are included in the
dures and conditions may be determined. Comparisons of data
recommended format for each test method; multiple data
from various sources will be most meaningful if all of the
elements may be required to cover some categories satisfacto-
elements are available.
rily:
4.5 The guide is designed to provide sufficient detail so that
5.1.1 Test identification,
every testing variable that influences a test result is recorded.
5.1.2 Specimen information,
4.6 The data elements included in this guide are presented
5.1.3 Test parameters and procedures,
recommended formats. These data elements provide suffi-
5.1.4 Test results and analysis, and
ciently complete information that users may be confident of
5.1.5 Test validation.
their ability to compare sets of data from individual databases
5.2 The linkage of a data record for one or more test results
and to make the database useful to a relatively broad range of
with a data record for a material is done during the develop-
users.
ment of a database schema using these recommended formats
4.6.1 The data elements in the recommended formats are
and guides with recommended formats specific to the identifi-
designed to be used in constructing the data dictionary prepa-
cation and description of materials.
ratory for developing a database or other data storage system.
5.2.1 A database builder has considerable flexibility in
Use of these data elements will facilitate comparisons among
developing the database schema and the recommended formats
data in different databases.
contained in this guide are intended to support that flexibility.
4.6.2 Many databases are prepared for specific applications, 5.3 It is often helpful to know values of related mechanical
and individual database builders may elect to omit certain data properties for the material in question when evaluating or
elements considered to be of no value for that specific interpreting fatigue and fracture data. The recommended data
application. formats do not include fields for these related properties unless
they are required for calculations given in the ASTM test
4.6.3 Anumber of data elements are considered essential to
methods.Therefore,itisrecommendedthatthedevelopmentof
any database and need to exist in the database. These data
a database schema provide linkages between fatigue and
elements must be completed to make the record meaningful
fracture test records and summary values of the following
according to the pertinent guidelines or standard. Data ele-
properties for each material:
ments are considered essential if they are required for the user
5.3.1 Hardness,
to have sufficient information to interpret the data and to make
5.3.2 Yield strength,
a comparison of data from different sources meaningful. A
5.3.3 Compressive yield strength,
comparison of data from different sources may be possible if
5.3.4 Ultimate tensile strength,
essential information is missing but the value of the compari-
5.3.5 Percent reduction of area,
son may be greatly reduced. In the recommended formats,
5.3.6 Percent elongation,
these data elements are marked with asterisks. Note that
5.3.7 True fracture stress,
situations do arise where essential data are not available. For
5.3.8 True fracture strain,
example, failure strain cannot be provided if the strain-
5.3.9 Elastic modulus, and
measuring device is not functioning when the test specimen
5.3.10 Poisson’s ratio.
fails. The database design and the engineer recording test data
must use their judgment for such cases.
6. Recommended Formats for Standard Data Records
4.6.4 These recommended formats do not represent a re-
6.1 The recommended formats for recording test data are
quirement that all the data elements must be included in every
listed in the appendixes that follow and include four columns
database. Rather these recommended formats are guides as to
those data elements that are likely to be useful to at least some
users of most databases.
4.6.5 Not all of the data elements recommended for inclu-
Included as a data element in Appendix X1.
sion will be available for all databases; this fact should not
Included as a data element in Appendix X1 and Appendix X3.
discourage database builders and users from proceeding so Included as a data element in Appendix X3.
E 1761 – 95 (1999)
of information: data element number, data element descriptive 6.1.4.3 The units listed are SI, according to Practice E 380,
name,datatype,andcategorysets,valuesets,orunitsaslisted: followed by inch-pound (U.S. customary) units in parentheses
(except for test methods that have both a metric and an
6.1.1 Data Element Number—A reference number for ease
inch-pound version).
of dealing with the individual data elements in this guide. The
6.2 Worksheets—Worksheet versions may be desirable for
data element number has no permanent value and does not
various purposes, such as for use in a testing laboratory for
become part of a database itself.
recording original test data.The worksheet set-up is not critical
6.1.2 Data Element Descriptive Name—The complete and
if all of the available data elements are recorded.
unambiguous name, descriptive of the data element, descrip-
tive of the data element being identified in the data format.
7. Summary Tables
6.1.3 Data Type—Thekindofdatatobeincludedinthedata
7.1 Though this guide primarily is concerned with the
element, such as the type of numbers, character strings, logical
recording and storage of test data upon generation, the analysis
values, date, and time.
and presentation of data are also of concern. Often this takes
6.1.4 Category Sets, Value Sets or Units—A listing of the
theformofsummarytablesforcompilingresultsofmanytests.
typesofinformationthatwouldbeincludedinthedataelement
Depending on the design of the database system, summary
or, in the case of properties or other numeric data elements, the
tables might also be used to enable correlations between test
units in which numbers are expressed.
data from a particular test method and other related properties.
6.1.4.1 A category set is a closed set listing all possible
7.2 Such summary tables are likely to require space for
values the data element may take. Category sets are usually
derived values, such as averages, or for statistically or para-
given in separate tables in the recommended format.
metrically generated property values.
6.1.4.2 Avalue set is a representative set listing sample, but 7.3 Since the recommended formats used in summarizing,
not necessarily all, acceptable values that the data element may compiling,andpresentingmultipletestresultswillvarygreatly
take. Value sets may be given as separate tables in the with the specific application, guidelines for such tabulations
recommended format. are not presented herein.
APPENDIXES
(Nonmandatory Information)
X1. RECOMMENDED FORMAT FOR COMPUTERIZATION OF PLANE-STRAIN FRACTURE TOUGHNESS TEST DATA
BASED ON TEST METHOD E 399
X1.1 This recommended format is for plane-strain fracture referenced in material specifications or recommended formats
toughness data generated by Test Method E 399. The recom- for other test methods.
mended format does not include the recommended material
description or the presentation of other specific types of test
data. These items are covered by separate formats to be
TABLE X1.1 Recommended Format for Computerization of Plane-Strain Fracture Toughness Test Data per Test Method E 399
A B
No. Data Element Name and Description Data Type Category Sets, Value Sets or Units
Test Identification
(1)* Type of test STRING Plane-strain fracture toughness
(2)* ASTM, ISO, or other applicable standard method number STRING ASTM E 399
(3) Date of applicable standard year DATE (for example 1985)
(4) Published source of data STRING
Specimen Information
(5)* Specimen identification STRING .
(6)* Specimen type STRING see Table X1.2
(7)* Specimen orientation STRING see Table X1.3
(8) Specimen location STRING see Table X1.4
(9)* Specimen thickness, B REAL mm (in.)
(10)* Specimen width (depth), W REAL mm (in.)
(11) Specimen span length, S (bend specimen) REAL mm (in.)
(12)* Loading hole offset (arc-shaped) REAL mm (in.)
(13)* Inner radius (arc-shaped) REAL mm (in.)
(14)* Outer radius (arc-shaped) REAL mm (in.)
(15)* Material yield strength value, TYS REAL MPa (ksi)
(16)* Source of yield strength value STRING .
(17) Material elastic modulus value, E REAL MPa (ksi)
(18)* Source of elastic modulus value STRING .
E 1761 – 95 (1999)
TABLE X1.1 Continued
A B
No. Data Element Name and Description Data Type Category Sets, Value Sets or Units
Fatigue Precracking
(19) Fatigue cracking maximum load, P REAL N (lbf)
fmax
(20) Fatigue maximum stress intensity, K REAL MPa(−m) (ksi(−in.))
fmax
(21) Fatigue cracking load ratio REAL .
(22) Cycles to complete fatigue cracking REAL 10 cycles
Test Parameters and Procedures
(23)* Test temperature REAL C (degree F)
(24) Test environ
...
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