ASTM D5766/D5766M-11(2018)

Standard Test Method for Open-Hole Tensile Strength of Polymer Matrix Composite Laminates

SIGNIFICANCE AND USE
5.1 This test method is designed to produce notched tensile strength data for structural design allowables, material specifications, research and development, and quality assurance. Factors that influence the notched tensile strength and should therefore be reported include the following: material, methods of material fabrication, accuracy of lay-up, laminate stacking sequence and overall thickness, specimen geometry (including hole diameter, diameter-to-thickness ratio, and width-to-diameter ratio), specimen preparation (especially of the hole), specimen conditioning, environment of testing, specimen alignment and gripping, speed of testing, time at temperature, void content, and volume percent reinforcement. Properties that may be derived from this test method include the following:  
5.1.1 Open-hole (notched) tensile strength (OHT).
SCOPE
1.1 This test method determines the open-hole tensile strength of multidirectional polymer matrix composite laminates reinforced by high-modulus fibers. The composite material forms are limited to continuous-fiber or discontinuous-fiber (tape or fabric, or both) reinforced composites in which the laminate is balanced and symmetric with respect to the test direction. The range of acceptable test laminates and thicknesses are described in 8.2.1.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.2.1 Within the text the inch-pound units are shown in brackets.  
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Historical
• Publication Date: 31-May-2018
• ICS: 83.120 - Reinforced plastics
• Technical Committee: D30 - Composite Materials
• Drafting Committee: D30.05 - Structural Test Methods

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: D5766/D5766M − 11 (Reapproved 2018)
Standard Test Method for
Open-Hole Tensile Strength of Polymer Matrix Composite
1
Laminates
This standard is issued under the fixed designation D5766/D5766M; 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 tive Density) of Plastics by Displacement
D883 Terminology Relating to Plastics
1.1 This test method determines the open-hole tensile
D2584 Test Method for Ignition Loss of Cured Reinforced
strength of multidirectional polymer matrix composite lami-
Resins
nates reinforced by high-modulus fibers. The composite mate-
D2734 Test Methods for Void Content of Reinforced Plastics
rial forms are limited to continuous-fiber or discontinuous-fiber
D3039/D3039M Test Method for Tensile Properties of Poly-
(tape or fabric, or both) reinforced composites in which the
mer Matrix Composite Materials
laminate is balanced and symmetric with respect to the test
D3171 Test Methods for Constituent Content of Composite
direction. The range of acceptable test laminates and thick-
Materials
nesses are described in 8.2.1.
D3878 Terminology for Composite Materials
1.2 The values stated in either SI units or inch-pound units
D5229/D5229M Test Method for Moisture Absorption Prop-
are to be regarded separately as standard. The values stated in
erties and Equilibrium Conditioning of Polymer Matrix
each system may not be exact equivalents; therefore, each
Composite Materials
system shall be used independently of the other. Combining
E6 Terminology Relating to Methods of Mechanical Testing
values from the two systems may result in non-conformance
E177 Practice for Use of the Terms Precision and Bias in
with the standard.
ASTM Test Methods
1.2.1 Within the text the inch-pound units are shown in
E456 Terminology Relating to Quality and Statistics
brackets.
E691 Practice for Conducting an Interlaboratory Study to
1.3 This standard does not purport to address all of the Determine the Precision of a Test Method
safety concerns, if any, associated with its use. It is the
E1309 Guide for Identification of Fiber-Reinforced
responsibility of the user of this standard to establish appro-
Polymer-Matrix Composite Materials in Databases (With-
3
priate safety, health, and environmental practices and deter- drawn 2015)
mine the applicability of regulatory limitations prior to use.
E1434 Guide for Recording Mechanical Test Data of Fiber-
1.4 This international standard was developed in accor- Reinforced Composite Materials in Databases (Withdrawn
3
dance with internationally recognized principles on standard-
2015)
ization established in the Decision on Principles for the
3. Terminology
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
3.1 Definitions—Terminology D3878 defines terms relating
Barriers to Trade (TBT) Committee.
to high-modulus fibers and their composites. Terminology
D883 defines terms relating to plastics. Terminology E6 defines
2. Referenced Documents
terms relating to mechanical testing. Terminology E456 and
2
Practice E177 define terms relating to statistics. In the event of
2.1 ASTM Standards:
a conflict between terms, Terminology D3878 shall have
D792 Test Methods for Density and Specific Gravity (Rela-
precedence over the other standards.
3.2 Definitions of Terms Specific to This Standard:
1
This test method is under the jurisdiction of ASTM Committee D30 on
NOTE 1—If the term represents a physical quantity, its analytical
Composite Materials and is the direct responsibility of Subcommittee D30.05 on
dimensions are stated immediately following the term (or letter symbol) in
Structural Test Methods.
fundamental dimension form, using the following ASTM standard sym-
Current edition approved June 1, 2018. Published July 2018. Originally approved
bology for fundamental dimensions, shown within square brackets: [M]
in 1995. Last previous edition approved in 2011 as D5766/D5766M – 11. DOI:
10.1520/D5766_D5766M-11R18. for mass, [L] for length, [T] for time, [θ] for thermodynamic temperature,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D5766/D576
...

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: D5766/D5766M − 11 D5766/D5766M − 11 (Reapproved 2018)
Standard Test Method for
Open-Hole Tensile Strength of Polymer Matrix Composite
1
Laminates
This standard is issued under the fixed designation D5766/D5766M; 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 test method determines the open-hole tensile strength of multidirectional polymer matrix composite laminates
reinforced by high-modulus fibers. The composite material forms are limited to continuous-fiber or discontinuous-fiber (tape or
fabric, or both) reinforced composites in which the laminate is balanced and symmetric with respect to the test direction. The range
of acceptable test laminates and thicknesses are described in 8.2.1.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.2.1 Within the text the inch-pound units are shown in brackets.
1.3 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D883 Terminology Relating to Plastics
D2584 Test Method for Ignition Loss of Cured Reinforced Resins
D2734 Test Methods for Void Content of Reinforced Plastics
D3039/D3039M Test Method for Tensile Properties of Polymer Matrix Composite Materials
D3171 Test Methods for Constituent Content of Composite Materials
D3878 Terminology for Composite Materials
D5229/D5229M Test Method for Moisture Absorption Properties and Equilibrium Conditioning of Polymer Matrix Composite
Materials
E6 Terminology Relating to Methods of Mechanical Testing
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E456 Terminology Relating to Quality and Statistics
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
3
E1309 Guide for Identification of Fiber-Reinforced Polymer-Matrix Composite Materials in Databases (Withdrawn 2015)
3
E1434 Guide for Recording Mechanical Test Data of Fiber-Reinforced Composite Materials in Databases (Withdrawn 2015)
3. Terminology
3.1 Definitions—Terminology D3878 defines terms relating to high-modulus fibers and their composites. Terminology D883
defines terms relating to plastics. Terminology E6 defines terms relating to mechanical testing. Terminology E456 and Practice
1
This test method is under the jurisdiction of ASTM Committee D30 on Composite Materials and is the direct responsibility of Subcommittee D30.05 on Structural Test
Methods.
Current edition approved Jan. 1, 2011June 1, 2018. Published February 2011July 2018. Originally approved in 1995. Last previous edition approved in 20072011 as
D5766/D5766M – 07.D5766/D5766M – 11. DOI: 10.1520/D5766_D5766M-11.10.1520/D5766_D5766M-11R18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5766/D5766M − 11 (2018)
E177 define terms relating to statistics. In the event of a conflict between terms, Terminology D3878 shall have precedence over
the other standards.
3.2 Definitions of Terms Specific to This Standa
...