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ASTM D6308-92

(Guide)

Guide for Identification of Composite Materials in Computerized Material Property Databases. (Withdrawn 1999)

Guide for Identification of Composite Materials in Computerized Material Property Databases. (Withdrawn 1999)

SCOPE
1.1 This guide establishes the essential and desirable elements of data required for the identification of composite materials in computerized material property databases. A recommended format for entry of these fields into a computerized database is also provided. Examples of the application of this guide are included for filament-wound polymer-matrix composites, laminar polymer-matrix composites, and ceramic-matrix composites. An example for metal-matrix composites is planned for the next revision.
1.2 The recommended format described in this document is suggested for use in recording data in a computerized database, which is different from contractual reporting of actual test results. The latter type of information is described in a materials specification or shown on business transactions, and is subject to agreement between vendor and purchaser.
1.3 This guide defines the information which is considered essential to uniquely describe a composite material. A format is recommended for placing these data in fields suitable for a computerized database. Additional fields which are considered desirable, but not essential, are also defined. The purpose is to facilitate efficient storage and retrieval of the information with a computer and to allow meaningful comparison of data from different sources.

General Information

Status
Withdrawn
Publication Date
31-Dec-1991
ICS
35.240.30 - IT applications in information, documentation and publishing
Technical Committee
D30 - Composite Materials
Drafting Committee
D30.01 - Editorial and Resource Standards
Current Stage
Ref Project

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ASTM D6308-92 - Guide for Identification of Composite Materials in Computerized Material Property Databases. (Withdrawn 1999)ASTM D6308-92 - Guide for Identification of Composite Materials in Computerized Material Property Databases. (Withdrawn 1999)
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ASTM D6308-92 - Guide for Identification of Composite Materials in Computerized Material Property Databases. (Withdrawn 1999)
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AMERICAN SOCIETY FOR TESTING AND MATERIALS
Designation: D 6308 - 92
100 Barr Harbor Dr., West Consh&xken, PA 19428
ClSTb Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Guide for
Identification of Composite Materials in Computerized
Material Property Databases’
This standard is issued under the fixed designation D 6308; 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.
3.2 Descriptions of Terms Specific to This Standard:
1. Scope
3.2.1 composite material, n-a material consisting of two
1.1 This guide establishes the essential and desirable
or more materials, insoluble in one another, which are
elements of data required for the identification of composite
combined on a macroscale to form a useful engineering
materials in computerized material property databases. A
material possessing certain properties not possessed by the
recommended format for entry of these fields into a comput-
constituents.
erized database is also provided. Examples of the application
of this guide are included for filament-wound polymer-
DISCUSSION-A composite material is inherently inhomogeneous on
matrix composites, laminar polymer-matrix composites, and
a microscopic scale but can often be assumed to be homogeneous on a
ceramic-matrix composites. An example for metal-matrix
macroscopic scale for certain engineering applications.
composites is planned for the next revision.
3.2.2 core, n-a generally, centrally located layer or com-
1.2 The recommended format described in this document
posite component of a sandwich construction, usually low
is suggested for use in recording data in a computerized
density, which separates and stabilizes the facings and
database, which is different from contractual reporting of
transmits shear between them and provides most of the shear
actual test results. The latter type of information is described
rigidity of the construction (see Terminology C 274).
in a materials specification or shown on business transac-
3.2.3 essential,field, n-a field in a record which must be
tions, and is subject to agreement between vendor and
filled in order to meet the requirements of a stated type of
purchaser.
database (see Terminology E 1443).
1.3 This guide defines the information which is consid-
ered essential to uniquely describe a composite material. A
DncussloN-Fields are considered essential if they are required to
format is recommended for placing these data in fields
make a meaningful Comparison of property data from different sources.
suitable for a computerized database. Additional fields which A comparison of data from different sources may still be possible if
are considered desirable, but not essential, are also defined. essential information is omitted, but the value of the comparison may be
greatly reduced.
The purpose is to facilitate efficient storage and retrieval of
the information with a computer and to allow meaningful
3.2.4 field, n-an elementary unit of a record that may
comparison of data from different sources.
contain a data item, a data aggregate, a pointer, or a link (see
Terminology E 1443).
2. Referenced Documents
3.2.5 field name, n-a name or code associated with a
2.1 ASTM Standards:
field and used for identification (see Terminology E 1443).
C 274 Terminology of Structural Sandwich Constructions’
3.2.6 gel point, n (or gel time)-a point in a cure cycle
D 3878 Terminology of High-Modulus Reinforcing Fibers
where a thermosetting polymer resin resolidifies after
and Their Composites2
melting.
E 1338 Guide for the Identification of Metals and Alloys
3.2.7 isotropic material, n-a material in which a prop-
in Computerized Material Property Databases3
erty of interest, at a given point, possesses an infinite number
E 1443 Terminology Relating to Building and Accessing
of planes of material symmetry, yielding the same property
Material and Chemical Databases3
value in all directions.
E 1471 Guide for the Identification of Fibers, Fillers, and
3.2.8 luy-up, n-a process of fabrication involving the
Core Materials in Computerized Material Property
placement of successive layers of materials.
Databases*
3.2.9 luy-up code, n-an abbreviated form of stacking
sequence information.
3. Terminology
3.2.10 matrix, n-in composite materials, the continuous
3.1 Definitions-Terminology D 3878 and E 1443 shall
constituent of a composite material which acts as the load
be used where applicable.
transfer mechanism between the discrete dispersed reinforc
...

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