ASTM D6484/D6484M-14

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

SIGNIFICANCE AND USE
5.1 This test method is designed to produce notched compressive strength data for structural design allowables, material specifications, research and development, and quality assurance. Factors that influence the notched compressive strength and shall 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, loading procedure, speed of testing, time at temperature, void content, and volume percent reinforcement. Properties that may be derived from this test method include open-hole (notched) compressive strength (OHC).
SCOPE
1.1 This test method determines the open-hole compressive 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. Within the text the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 14-May-2014
• 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D6484/D6484M − 14
Standard Test Method for
Open-Hole Compressive Strength of Polymer Matrix
1
Composite Laminates
This standard is issued under the fixed designation D6484/D6484M; 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 D3171 Test Methods for Constituent Content of Composite
Materials
1.1 This test method determines the open-hole compressive
D3878 Terminology for Composite Materials
strength of multidirectional polymer matrix composite lami-
D5229/D5229M TestMethodforMoistureAbsorptionProp-
nates reinforced by high-modulus fibers. The composite mate-
erties and Equilibrium Conditioning of Polymer Matrix
rialformsarelimitedtocontinuous-fiberordiscontinuous-fiber
Composite Materials
(tape or fabric, or both) reinforced composites in which the
D5687/D5687M Guide for Preparation of Flat Composite
laminate is balanced and symmetric with respect to the test
Panels with Processing Guidelines for Specimen Prepara-
direction. The range of acceptable test laminates and thick-
tion
nesses are described in 8.2.1.
E4 Practices for Force Verification of Testing Machines
1.2 The values stated in either SI units or inch-pound units
E6 Terminology Relating to Methods of Mechanical Testing
are to be regarded separately as standard. Within the text the
E83 Practice for Verification and Classification of Exten-
inch-pound units are shown in brackets. The values stated in
someter Systems
each system are not exact equivalents; therefore, each system
E122 Practice for Calculating Sample Size to Estimate,With
must be used independently of the other. Combining values
Specified Precision, the Average for a Characteristic of a
from the two systems may result in nonconformance with the
Lot or Process
standard.
E177 Practice for Use of the Terms Precision and Bias in
1.3 This standard does not purport to address all of the ASTM Test Methods
safety concerns, if any, associated with its use. It is the
E456 Terminology Relating to Quality and Statistics
responsibility of the user of this standard to establish appro- E691 Practice for Conducting an Interlaboratory Study to
priate safety and health practices and determine the applica-
Determine the Precision of a Test Method
bility of regulatory limitations prior to use.
E1309 Guide for Identification of Fiber-Reinforced
Polymer-Matrix Composite Materials in Databases
2. Referenced Documents
E1434 Guide for Recording Mechanical Test Data of Fiber-
2
Reinforced Composite Materials in Databases
2.1 ASTM Standards:
E1471 Guide for Identification of Fibers, Fillers, and Core
D792 Test Methods for Density and Specific Gravity (Rela-
Materials in Computerized Material Property Databases
tive Density) of Plastics by Displacement
D883 Terminology Relating to Plastics
3. Terminology
D2584 Test Method for Ignition Loss of Cured Reinforced
3.1 Definitions—Terminology D3878 defines terms relating
Resins
to high-modulus fibers and their composites. Terminology
D2734 TestMethodsforVoidContentofReinforcedPlastics
D883definestermsrelatingtoplastics.TerminologyE6defines
D3039/D3039M Test Method for Tensile Properties of Poly-
terms relating to mechanical testing. Terminology E456 and
mer Matrix Composite Materials
Practice E177 define terms relating to statistics. In the event of
a conflict between terms, Terminology D3878 shall have
1
This test method is under the jurisdiction of ASTM Committee D30 on
precedence over the other terminologies.
Composite Materials and is the direct responsibility of Subcommittee D30.05 on
3.2 Definitions of Terms Specific to This Standard:
Structural Test Methods.
Current edition approved May 15, 2014. Published May 2014. Originally
NOTE 1—If the term represents a physical quantity, its analytical
approved in 1999. Last previous edition approved in 2009 as D6484/
ε1
dimensionsarestatedimmediatelyfollowingtheterm(orlettersymbol)in
D6484M – 09 . DOI: 10.1520/D6484_D6484M-14.
2
fundamental dimension form, using the following ASTM standard sym-
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
bology for fundamental dimensions, shown within square brackets: [M]
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on for mass, [L] for length, [T] for time, [θ] for thermodynamic temperature,
the ASTM website. and [nd] for nondimensional quantities. Use of these symbols is restricted
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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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: D6484/D6484M − 09 D6484/D6484M − 14
Standard Test Method for
Open-Hole Compressive Strength of Polymer Matrix
1
Composite Laminates
This standard is issued under the fixed designation D6484/D6484M; 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 compressive 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. Within the text the
inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must
be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
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 and health practices and determine the applicability of regulatory
limitations prior to use.
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
D5687/D5687M Guide for Preparation of Flat Composite Panels with Processing Guidelines for Specimen Preparation
E4 Practices for Force Verification of Testing Machines
E6 Terminology Relating to Methods of Mechanical Testing
E83 Practice for Verification and Classification of Extensometer Systems
E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or
Process
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
E1309 Guide for Identification of Fiber-Reinforced Polymer-Matrix Composite Materials in Databases
E1434 Guide for Recording Mechanical Test Data of Fiber-Reinforced Composite Materials in Databases
E1471 Guide for Identification of Fibers, Fillers, and Core Materials in Computerized Material Property Databases
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 Dec. 1, 2009May 15, 2014. Published January 2010May 2014. Originally approved in 1999. Last previous edition approved in 20042009 as
ε1
D6484/D6484M – 04D6484/D6484M – 09 . DOI: 10.1520/D6484_D6484M-09.10.1520/D6484_D6484M-14.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D6484/D6484M − 14
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
E177 define terms relating to statistics. In the event of a conflict between terms, Terminology D3878 shall have precedence over
the other terminologies.
3.2 Definitions of Terms Specific to This Standard:
NOTE 1—If the t
...