ASTM E1471-1992(2008) Standard Guide for Identification of Fibers Fillers and Core Materials in Computerized Material Property Databases《计算机处理的材料性能数据库中纤维、填充料和磁心材料的识别的标准指南》.pdf
《ASTM E1471-1992(2008) Standard Guide for Identification of Fibers Fillers and Core Materials in Computerized Material Property Databases《计算机处理的材料性能数据库中纤维、填充料和磁心材料的识别的标准指南》.pdf》由会员分享,可在线阅读,更多相关《ASTM E1471-1992(2008) Standard Guide for Identification of Fibers Fillers and Core Materials in Computerized Material Property Databases《计算机处理的材料性能数据库中纤维、填充料和磁心材料的识别的标准指南》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: E 1471 92 (Reapproved 2008)Standard Guide forIdentification of Fibers, Fillers, and Core Materials inComputerized Material Property Databases1This standard is issued under the fixed designation E 1471; the number immediately following the designation indicates the year oforiginal adopti
2、on or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This guide establishes the essential and desirable ele-ments of data requi
3、red for the identification in computerizedmaterial property databases of fibers, fillers, and core materialsused in composite materials. A recommended format for entryof these fields into a computerized database is provided.Examples of the application of this guide are also included.1.2 The recommen
4、ded format described in this guide issuggested for use in recording data in a database, which isdifferent from contractural reporting of actual test results. Thelatter type of information is described in materials specifica-tions shown in business transactions and is subject to agree-ment between ve
5、ndor and purchaser.1.3 The materials covered by this guide include fibers, bothcontinuous and discontinuous, and fillers of various geometrieswhich are used as reinforcements in composite materials, aswell as core materials used in sandwich composites. Cores maybe foam, honeycomb, or naturally occur
6、ring materials such asbalsa wood. These materials are distinguished from bulkmaterials by the importance of their specialized geometricforms to their properties. This difference is reflected in the useof geometry, along with chemistry, as a primary basis forclassification. Identification of composit
7、e materials is dis-cussed in Guide E 1309.2. Referenced Documents2.1 ASTM Standards:2C 274 Terminology of Structural Sandwich ConstructionsD 123 Terminology Relating to TextilesD 883 Terminology Relating to PlasticsD 3878 Terminology for Composite MaterialsE 1309 Guide for Identification of Fiber-Re
8、inforcedPolymer-Matrix Composite Materials in DatabasesE 1443 Terminology Relating to Building and AccessingMaterial and Chemical Databases (Discontinued 2000)33. Terminology3.1 DefinitionsTerminology D 3878 shall be used whereapplicable.3.2 Definitions of Terms Specific to This Standard:3.2.1 core,
9、 na generally, centrally located layer or com-posite component of a sandwich construction, usually lowdensity, which separates and stabilizes the facings and trans-mits shear between them and provides most of the shearrigidity of the construction (see Terminology C 274).3.2.2 essential field, na fie
10、ld in a record which must befilled to meet the requirements of a stated type of database (seeTerminology E 1443).3.2.2.1 DiscussionFields are considered essential if theyare required to make a meaningful comparison of property datafrom different sources. A comparison of data from differentsources ma
11、y still be possible if essential information is omitted,but the value of the comparison may be greatly reduced.3.2.3 fiber, nin textiles, the general term for a filamentarymaterial having a length at least ten times its nominal diameter.3.2.4 field, nan elementary unit of a record that maycontain a
12、data item, a data aggregate, a pointer, or a link (seeE 1443).3.2.5 field name, na name or code associated with a fieldand used for identification (see Terminology E 1443).3.2.6 filler, na relatively inert material added to a plasticto modify its strength, permanence, working properties, orother qua
13、lities, or to lower cost (see Terminology D 883).3.2.7 strand, nin textile fibers, a normally untwistedbundle of filaments.3.2.8 value set, nan open listing of representative, accept-able strings which could be included in a particular field of arecord (see Terminology E 1443).4. Significance and Us
14、e4.1 This guide defines the information which is consideredessential to uniquely describe a fiber, filler, or core material ina computerized database.Aformat is recommended for placingthese data in fields suitable for a computerized database.1This guide is under the jurisdiction of ASTM Committee D3
15、0 on CompositeMaterials and is the direct responsibility of Subcommittee D30.01 on Editorial andResource Standards.Current edition approved Nov. 1, 2008. Published December 2008. Originallyapproved in 1992. Last previous edition approved in 2004 as E 1471 92 (2004).2For referenced ASTM standards, vi
16、sit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.
17、1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Additional fields which are considered desirable, but notessential, are also defined. The purpose is to facilitate efficientstorage and retrieval of the information with a computer and
18、toallow meaningful comparison of data from different sources.4.2 Comparison of property data from different sources willbe most meaningful if all the essential information defined bythe guidelines is present. Comparison may still be possible ifessential information is omitted, but the value of the c
19、ompari-son may be greatly reduced.4.3 While at this time there is no generally acceptednumbering system for these materials, analogous to those formetals and alloys, a field for an identifying number (MaterialReference Number) is included should such a system bedeveloped in the future.4.4 This infor
20、mation should not be considered restrictive.For example, a database designer may find it useful toaggregate several fields, such as the material and chemicalclass fields, into a single field. This may affect search strategiesand other database operations. These considerations are be-yond the scope o
21、f this guide.5. Guidelines5.1 The following fields are recommended for identificationof fibers, fillers, and core materials used in composites. Forcertain fields, lists of recommended entries are included.Where possible, entries should be chosen from these lists.However, these lists should not be re
22、garded as exhaustive.5.2 Primary Identifiers:5.2.1 Material Reference NumberIdentifying number orcode, if any, for the particular material.5.2.2 ClassClassification by form, either fiber, filler, orcore.5.2.3 SubclassFurther subdivision by geometric formwithin the class. See Table 1 for list.5.2.4 C
23、hemical FamilyClassification of the material by itsgeneric chemical composition family. See Table 1 for list.5.3 Commercial Specification:5.3.1 Common NameName by which the material isknown in the industry.5.3.2 Additional Name InformationAdditional informa-tion on the name, such as chemical composi
24、tion details on thematerial.5.3.3 Specification OrganizationA company, industry,government, national, regional, or international organizationissuing the specification; for example, ASTM.5.3.4 Specification NumberThe specification numberwithin the organization referenced.5.3.5 Specification VersionTh
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