ASTM D3518/D3518M-94e1

Standard Test Method for In-Plane Shear Response of Polymer Matrix Composite Materials by Tensile Test of a &#177 45^o Laminate

General Information

• Status: Historical
• Publication Date: 31-Dec-1993
• Technical Committee: D30 - Composite Materials
• Drafting Committee: D30.04 - Lamina and Laminate Test Methods

Standards Content (Sample)

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Designation: D 3518/D 3518M – 94
Standard Test Method for
In-Plane Shear Response of Polymer Matrix Composite
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Materials by Tensile Test of a 645° Laminate
This standard is issued under the fixed designation D 3518/D 3518M; 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.
This standard has been approved for use by agencies of the Department of Defense.
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e NOTE—Title changed from “practice” to “test method” in August 1995.
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1. Scope E 456 Terminology Relating to Quality and Statistics
E 1309 Guide for the Identification of Composite Materials
1.1 This test method determines the in-plane shear response
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in Computerized Material Property Databases
of polymer matrix composite materials reinforced by high-
E 1313 Guide for Recommended Formats for Data Records
modulus fibers. The composite material form is limited to a
Used In Computerization of Mechanical Test Data for
continuous-fiber reinforced composite6 45° laminate capable
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Metals
of being tension tested in the laminate x-direction.
E 1434 Guide for Development of Standard Data Records
1.2 This standard does not purport to address all of the
for Computerization of Mechanical Test Data for High-
safety concerns, if any, associated with its use. It is the
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Modulus Fiber-Reinforced Composite Materials
responsibility of the user of this standard to establish appro-
E 1471 Guide for the Identification of Fibers, Fillers, and
priate safety and health practices and determine the applica-
Core Materials in Computerized Material Property Data-
bility of regulatory limitations prior to use.
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bases
1.3 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. Within the text the
3. Terminology
inch-pound units are shown in brackets. The values stated in
3.1 Definitions—Terminology D 3878 defines terms relating
each system are not exact equivalents; therefore, each system
to high-modulus fibers and their composites. Terminology
must be used independently of the other. Combining values
D 883 defines terms relating to plastics. Terminology E 6
from the two systems may result in nonconformance with the
defines terms relating to mechanical testing. Terminology
standard.
E 456 and Practice E 177 define terms relating to statistics. In
2. Referenced Documents the event of a conflict between terms, Terminology D 3878
shall have precedence over the other standards.
2.1 ASTM Standards:
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3.2 Definitions of Terms Specific to This Standard:
D 883 Terminology Relating to Plastics
D 3039/D 3039M Test Method for Tensile Properties of
NOTE 1—If the term represents a physical quantity, its analytical
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Polymer Matrix Composite Materials dimensions are stated immediately following the term (or letter symbol) in
fundamental dimension form, using the following ASTM standard sym-
D 3878 Terminology of High-Modulus Reinforcing Fibers
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bology for fundamental dimensions, shown within square brackets: [M]
and Their Composites
for mass, [L] for length, [T] for time, [Q] for thermodynamic temperature,
E 6 Terminology Relating to Methods of Mechanical Test-
and [ nd] for non-dimensional quantities. Use of these symbols is
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ing
restricted to analytical dimensions when used with square brackets, as the
E 111 Test Method for Young’s Modulus, Tangent Modulus,
symbols may have other definitions when used without the brackets.
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and Chord Modulus
3.2.1 645° laminate—in laminated composites, a balanced,
E 177 Practice for Use of Terms Precision and Bias in
symmetric lay-up composed only of + 45° plies and −45° plies.
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ASTM Test Methods
(See also ply orientation.)
3.2.2 balanced, adj— in laminated composites, having, for
every off-axis ply oriented at +u, another ply oriented at −u that
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Test Method D 3518/D 3518M is under the jurisdiction of ASTM Committee
is of the same material system and form.
D-30 on High Modulus Fibers and Their Composites and is the direct responsibility
of Subcommittee D30.04 on Lamina and Laminate Test Methods.
3.2.3 lamina, n—pl. laminae, in laminated composites,a
Current edition approved Nov. 15, 1994. Published January 1995. Originally
single, thin, uniform layer that is the basic building block of a
published as D 3518 – 76. Last previous edition D 3518 – 91.
2 laminate. (Syn. ply).
Annual Book of ASTM Standards, Vol 08.01.
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Annual Book of ASTM Standards, Vol 15.03.
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Annual Book of ASTM Standards, Vol 03.01
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Annual Book of ASTM Standards, Vol 14.02. Annual Book of ASTM Standards, Vol 14.01.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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D 3518/D 3518M
3.2.4 material coordinate system, n—in laminated compos- 3.2.12 transition region, n—a strain region of a stress-strain
ites, a
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