ASTM D6507-16
(Practice)Standard Practice for Fiber Reinforcement Orientation Codes for Composite Materials
Standard Practice for Fiber Reinforcement Orientation Codes for Composite Materials
SIGNIFICANCE AND USE
4.1 The purpose of a laminate orientation code is to provide a simple, easily understood method of describing the lay-up of a laminate. The laminate orientation code is based largely on a combination of industry practice and the codes used in the NASA/DOD Advanced Composites Design Guide,5 CMH-17-2G, and ISO 1268-1.
4.2 The braiding orientation code provides similar information for a two-dimensional braid, based largely on Standard Test Methods for Textile Composites.6
SCOPE
1.1 This practice establishes orientation codes for continuous-fiber-reinforced composite materials. Orientation codes are explicitly provided for two-dimensional laminates and braids. The laminate code may also be used for filament-wound materials. A method is included for presenting subscript information in computerized formats that do not permit subscript notation.
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Designation: D6507 − 16
Standard Practice for
Fiber Reinforcement Orientation Codes for Composite
1
Materials
This standard is issued under the fixed designation D6507; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Significance and Use
1.1 This practice establishes orientation codes for 4.1 The purpose of a laminate orientation code is to provide
continuous-fiber-reinforced composite materials. Orientation a simple, easily understood method of describing the lay-up of
codes are explicitly provided for two-dimensional laminates a laminate. The laminate orientation code is based largely on a
and braids. The laminate code may also be used for filament- combination of industry practice and the codes used in the
5
wound materials.Amethod is included for presenting subscript NASA/DOD Advanced Composites Design Guide, CMH-17-
information in computerized formats that do not permit sub- 2G, and ISO 1268-1.
script notation.
4.2 The braiding orientation code provides similar informa-
tion for a two-dimensional braid, based largely on Standard
2. Referenced Documents
6
Test Methods for Textile Composites.
2
2.1 ASTM Standards:
D3518/D3518M Test Method for In-Plane Shear Response 5. Reference System
of Polymer Matrix Composite Materials byTensileTest of
5.1 A reference plane and direction are selected before
a 645° Laminate
writing the orientation code. The reference plane is selected as
D3878 Terminology for Composite Materials
the bottom or top layer for the laminate orientation code. For
2.2 Other Documents:
laminates symmetric about their midplane, the orientation code
CMH-17-2G, Polymer Matrix Composites, Volume 2 Ma-
using the top layer as the reference plane is identical to the
3
terials Properties, Section 1.6.1
orientation code using the bottom layer as the reference plane;
ISO 1268-1 Fibre-reinforced Plastics—Methods of Produc-
selection of the reference plane effectively determines the
ing Test Plates—Part 1: General Conditions, Annex
positive z-orthree-axisofthelaminate.Thereferencedirection
4
Stacking Designation Systems
(0°) is somewhat arbitrarily selected for convenience and
relevance to the application. Often, a dominant fiber direction
3. Terminology
is defined to be 0°. An example in which relevance to testing
3.1 Definitions—Definitions in accordance with Terminol-
determines the reference direction is the D3518/D3518M
ogy D3878 shall be used where applicable.
in-plane shear specimen configuration for which the loading
direction is selected as 0°.
1
This practice is under the jurisdiction ofASTM Committee D30 on Composite
6. Laminate Orientation (Lay-up) Code
Materials and is the direct responsibility of Subcommittee D30.01 on Editorial and
Resource Standards.
6.1 The following information and the examples in Fig. 1
Current edition approved July 1, 2016. Published July 2016. Originally approved
describe the laminate orientation code. Ply directions and
in 2000. Last previous edition approved in 2011 as D6507 – 11. DOI: 10.1520/
number of layers are indicated using the laminate orientation
D6507-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or code as follows:
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
5
the ASTM website. NASA/DOD Advanced Composites Design Guide, Vol. 4, Section 4.0.5, Air
3
Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale, Force Wright Aeronautical Laboratories, Day, OH, prepared by Rockwell Interna-
PA 15096, http://www.sae.org. tional Corp., 1983(distribution limited).
4 6
Available from American National Standards Institute (ANSI), 25 W. 43rd St., Masters, J. E., and Portanova, M. A., Standard Test Methods for Textile
4th Floor, New York, NY 10036, http://www.ansi.org. Composites, NASA CR-4751, NASA Langley Research Center, 1996
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6507 − 16
FIG. 1 Examples of Laminate Orientation Code
θ m b /θ m b . notes (1) measured between the warp direction and the reference direc-
@ #
1 1 1 2 2 2
nsb
tion. Positive angles are measured counter-clockwise from the
where:
reference direction when looking toward the lay-up surface
θ , θ = ply orientations (degrees) of the laminate stacking
1 2
(right-hand rule). A consistent range of angles is used with all
sequence (see 6.1.2),
angles in the range 90≥θ > –90. Orientations of successive
m ,m = num
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6507 − 11 D6507 − 16
Standard Practice for
Fiber Reinforcement Orientation Codes for Composite
1
Materials
This standard is issued under the fixed designation D6507; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This practice establishes orientation codes for continuous-fiber-reinforced composite materials. Orientation codes are
explicitly provided for two-dimensional laminates and braids. The laminate code may also be used for filament-wound materials.
A method is included for presenting subscript information in computerized formats that do not permit subscript notation.
2. Referenced Documents
2
2.1 ASTM Standards:
D3518/D3518M Test Method for In-Plane Shear Response of Polymer Matrix Composite Materials by Tensile Test of a 645°
Laminate
D3878 Terminology for Composite Materials
3
E1309 Guide for Identification of Fiber-Reinforced Polymer-Matrix Composite Materials in Databases (Withdrawn 2015)
2.2 Other Documents:
3
MIL-HDBK-17-2F,CMH-17-2G, Polymer Matrix Composites, VolVolume 2 Materials Properties, Section 1.6.1
ISO 1268-1 Fibre-reinforced Plastics—Methods of Producing Test Plates—Part 1: General Conditions, Annex Stacking
4
Designation Systems
3. Terminology
3.1 Definitions—Definitions in accordance with Terminology D3878 shall be used where applicable.
4. Significance and Use
4.1 The purpose of a laminate orientation code is to provide a simple, easily understood method of describing the lay-up of a
laminate. The laminate orientation code is based largely on a combination of industry practice and the codes used in the
5
NASA/DOD Advanced Composites Design Guide, MIL-HDBK-17-2F,CMH-17-2G, and ISO 1268-1.
4.2 The braiding orientation code provides similar information for a two-dimensional braid, based largely on Standard Test
6
Methods for Textile Composites.
5. Reference System
5.1 A reference plane and direction are selected before writing the orientation code. The reference plane is selected as the bottom
or top layer for the laminate orientation code. For laminates symmetric about their midplane, the orientation code using the top
layer as the reference plane is identical to the orientation code using the bottom layer as the reference plane; selection of the
reference plane effectively determines the positive z- or three-axis of the laminate. The reference direction (0°) is somewhat
arbitrarily selected for convenience and relevance to the application. Often, a dominant fiber direction is defined to be 0°. An
1
This practice is under the jurisdiction of ASTM Committee D30 on Composite Materials and is the direct responsibility of Subcommittee D30.01 on Editorial and
Resource Standards.
Current edition approved March 1, 2011July 1, 2016. Published April 2011July 2016. Originally approved in 2000. Last previous edition approved in 20052011 as
D6507 – 00 (2005).D6507 – 11. DOI: 10.1520/D6507-11.10.1520/D6507-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from DOD Single Stock Point, 700 Robbins Ave., Building 4D, Philadelphia, PA 19111-5094, http://www.dodssp.daps.mil/SAE International (SAE), 400
Commonwealth Dr., Warrendale, PA 15096, http://www.sae.org.
4
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
5
NASA/DOD Advanced Composites Design Guide, Vol. 4, Section 4.0.5, Air Force Wright Aeronautical Laboratories, Day, OH, prepared by Rockwell International Corp.,
1983(distribution limited).
6
Masters, J. E., and Portanova, M. A., Standard Test Methods for Textile Composites, NASA CR-4751, NASA Langley Research Center, 1996
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6507 − 16
example in which relevance to testing determines the reference direction is the D3518/D3518M in-plane shear specimen
configuration for which the loading direction is selected as 0°.
6. Laminate Orientation (Lay-up) Code
6.1 The following information and the examples in Fig. 1 describe the laminate orient
...
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