ASTM D2343-08
(Test Method)Standard Test Method for Tensile Properties of Glass Fiber Strands, Yarns, and Rovings Used in Reinforced Plastics
Standard Test Method for Tensile Properties of Glass Fiber Strands, Yarns, and Rovings Used in Reinforced Plastics
SIGNIFICANCE AND USE
Tensile properties determined by this test method are of value for identifying and characterizing materials for control and specification purposes as well as for providing data for research and development studies.
This test method is intended for use in testing resin-compatible sized glass fiber materials that have been designed specifically for use with certain generic types of plastics. The use of a resin impregnant that is compatible with the reinforcement material under test produces results that are most representative of the actual strength that is available in the material when used as intended in an end item. Premature reinforcement failure may occur if the elongation of the resin system is less than that of the reinforcement being tested. This requirement may restrict the use of certain resin systems in this procedure. Misleading results may be obtained when glass fiber materials are tested without complete resin impregnation of the fiber or when a non-compatible resin is used for impregnation.
This test method is useful for testing pretreated specimens for which comparative results are desired. Values obtained by this test method may be affected by gage length, gripping system, testing speed, and the resin impregnation ratio of the specimen.
SCOPE
1.1 This test method covers the determination of the comparative tensile properties of glass fiber strands, yarns, and rovings in the form of impregnated rod test specimens when tested under defined conditions of pretreatment, temperature, humidity, and tension testing machine speed. This test method is applicable to continuous filament, glass fiber materials that have been coated with a resin compatible sizing. This method is intended for use in quality control and R & D, and should not be used to develop composites design data.
Note 1—This method is technically equivalent to the short method described in ISO 9163.
Note 2—Prime consideration should be given to the use of a polymeric binder that produces specimens that yield the highest consistent values for the glass fiber material under test. Tensile properties may vary with specimen preparation, resin impregnation system, and speed and environment of testing. Consequently, where precise comparative results are desired, these factors must be carefully controlled.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
Note 3—Prime consideration should be given to the use of a polymeric binder that produces specimens that yield the highest consistent values for the glass fiber material under test. Tensile properties may vary with specimen preparation, resin impregnation system, and speed and environment of testing. Consequently, where precise comparative results are desired, these factors must be carefully controlled.
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.
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Designation: D 2343 – 08
Standard Test Method for
Tensile Properties of Glass Fiber Strands, Yarns, and
1
Rovings Used in Reinforced Plastics
This standard is issued under the fixed designation D 2343; 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.
1. Scope* 2. Referenced Documents
2
1.1 This test method covers the determination of the com- 2.1 ASTM Standards:
parative tensile properties of glass fiber strands, yarns, and D 618 Practice for Conditioning Plastics for Testing
rovings in the form of impregnated rod test specimens when D 883 Terminology Relating to Plastics
tested under defined conditions of pretreatment, temperature, D 3039/D 3039M Test Method for Tensile Properties of
humidity, and tension testing machine speed. This test method Polymer Matrix Composite Materials
is applicable to continuous filament, glass fiber materials that D 5083 Test Method for Tensile Properties of Reinforced
have been coated with a resin compatible sizing. This method Thermosetting Plastics Using Straight-Sided Specimens
isintendedforuseinqualitycontrolandR&D,andshouldnot E4 Practices for Force Verification of Testing Machines
be used to develop composites design data. E6 Terminology Relating to Methods of Mechanical Test-
ing
NOTE 1—This method is technically equivalent to the short method
described in ISO 9163.
3. Terminology
NOTE 2—Prime consideration should be given to the use of a polymeric
3.1 Definitions:
binder that produces specimens that yield the highest consistent values for
the glass fiber material under test. Tensile properties may vary with 3.1.1 Definitions of terms and symbols relating to this test
specimen preparation, resin impregnation system, and speed and environ-
method appear in TerminologiesE6 and D 883.
ment of testing. Consequently, where precise comparative results are
desired, these factors must be carefully controlled.
4. Summary of Test Method
1.2 The values stated in SI units are to be regarded as the
4.1 This test method consists of impregnating glass fiber
standard. The values given in parentheses are for information
strands, yarns, or rovings with a suitable polymeric binder
only.
material and loading the resulting test specimens to failure in a
tension testing machine having a constant-rate-of crosshead
NOTE 3—Prime consideration should be given to the use of a polymeric
movement. The cross sectional area is determined from skeins
binder that produces specimens that yield the highest consistent values for
of glass fiber taken before and after each set of test specimens.
the glass fiber material under test. Tensile properties may vary with
specimen preparation, resin impregnation system, and speed and environ- After impregnation and curing, the specimens shall either be
ment of testing. Consequently, where precise comparative results are
tabbed using glass fiber mat or cardboard and tested with
desired, these factors must be carefully controlled.
standard grips; or the ends shall be sanded with 240 grit
1.3 This standard does not purport to address all of the sandpaper or fine emery cloth and tested using rubber faced
safety concerns, if any, associated with its use. It is the grips.
responsibility of the user of this standard to establish appro-
5. Significance and Use
priate safety and health practices and determine the applica-
5.1 Tensile properties determined by this test method are of
bility of regulatory limitations prior to use.
value for identifying and characterizing materials for control
1
This test method is under the jurisdiction ofASTM Committee D20 on Plastics
2
and is the direct responsibility of Subcommittee D20.18 on Reinforced Thermoset- For referenced ASTM standards, visit the ASTM website, www.astm.org, or
ting Plastics. contactASTM Customer Service at service@astm.org. ForAnnual Book ofASTM
Current edition approved March 1, 2008. Published March 2008. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 1965. Last previous edition approved in 2003 as D2343 - 03. the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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D2343–08
and specification purposes as well as for providing data for 6.1.2 Tension Regulating System capable of maintaining the
research and development studies. roving or yarn under tension between 0.2 Newtons and 20
5.2 T
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:D2343–03 Designation: D 2343 – 08
Standard Test Method for
Tensile Properties of Glass Fiber Strands, Yarns, and
1
Rovings Used in Reinforced Plastics
This standard is issued under the fixed designation D 2343; 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.
1. Scope*
1.1 This test method covers the determination of the comparative tensile properties of glass fiber strands, yarns, and rovings in
the form of impregnated rod test specimens when tested under defined conditions of pretreatment, temperature, humidity, and
tension testing machine speed. This test method is applicable to continuous filament, glass fiber materials that have been coated
with a resin compatible sizing. This method is intended for use in quality control andR&D,and should not be used to develop
composites design data.
NOTE 1—This method is technically equivalent to the short method described in ISO 9163.
NOTE 2—Prime consideration should be given to the use of a polymeric binder that produces specimens that yield the highest consistent values for the
glass fiber material under test. Tensile properties may vary with specimen preparation, resin impregnation system, and speed and environment of testing.
Consequently, where precise comparative results are desired, these factors must be carefully controlled.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
NOTE 3—Prime consideration should be given to the use of a polymeric binder that produces specimens that yield the highest consistent values for the
glass fiber material under test. Tensile properties may vary with specimen preparation, resin impregnation system, and speed and environment of testing.
Consequently, where precise comparative results are desired, these factors must be carefully controlled.
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:
D 618 Practice for Conditioning Plastics for Testing
D 883 Terminology Relating to Plastics
D 3039/D 3039M Test Method for Tensile Properties of Polymer Matrix Composite Materials
D 5083 Test Method for Tensile Properties of Reinforced Thermosetting Plastics Using Straight-Sided Specimens
E 4 Practices for Force Verification of Testing Machines
E 6 Terminology Relating to Methods of Mechanical Testing
3. Terminology
3.1 Definitions:
3.1.1 Definitions of terms and symbols relating to this test method appear in Terminologies E 6 and D 883.
4. Summary of Test Method
4.1 This test method consists of impregnating glass fiber strands, yarns, or rovings with a suitable polymeric binder material
and loading the resulting test specimens to failure in a tension testing machine having a constant-rate-of crosshead movement.The
cross sectional area is determined from skeins of glass fiber taken before and after each set of test specimens.After impregnation
and curing, the specimens shall either be tabbed using glass fiber mat or cardboard and tested with standard grips; or the ends shall
1
This test method is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.18 on Reinforced Thermosetting
Plastics.
Current edition approved Nov.March 1, 2003.2008. Published January 2004.March 2008. Originally approved in 1965. Last previous edition approved in 19952003 as
D2343-95.D2343 - 03.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.ForAnnualBookofASTMStandards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D2343–08
be sanded with 240 grit sandpaper or fine emoryemery cloth and tested using rubber faced grips.
5. Significance and Use
5.1 Tensile properti
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