ASTM D3916-22

Standard Test Method for Tensile Properties of Pultruded Glass-Fiber-Reinforced<brk /> Plastic Rod

SIGNIFICANCE AND USE
4.1 The high axial-tensile strength and the low transverse-compressive strength of pultruded rod combine to present some unique problems in determining the tensile strength of this material with conventional test grips. The high transverse-compressive forces generated in the conventional method of gripping tend to crush the rod, thereby causing premature failure. In this test method, aluminum-alloy tabs contoured to the shape of the rod reduce the compressive forces imparted to the rod, thus overcoming the deleterious influence of conventional test grips.  
4.2 Tensile properties are influenced by specimen preparation, strain rate, thermal history, and environmental conditions at the time of testing. Consequently, where precise comparative results are desired, these factors must be carefully controlled.  
4.3 Tensile properties provide useful data for many engineering design purposes. However, due to the high sensitivity of these properties to strain rate, temperature, and other environmental conditions, data obtained by this test method shall not, by themselves, be considered for applications involving load-time scales or environmental conditions that differ widely from the test conditions. In cases where such dissimilarities are apparent, the sensitivities to strain rate, including impact and creep, as well as to the environment, shall be determined over a wide range of conditions as dictated by the anticipated service requirements.
SCOPE
1.1 This test method describes a procedure for determining the tensile properties of a pultruded, glass-fiber-reinforced thermosetting plastic rod of diameters ranging from 2.03 mm (0.08 in.) to 12.7 mm (0.5 in.). Test Method D7205/D7205M is an alternative test method to determine tensile properties of fiber-reinforced composite rods of diameters bigger than 12.7 mm (0.5 in.).  
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
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. Specific hazards statements are given in 6.1 and 8.4.3.
Note 1: There is no known ISO equivalent to this standard.  
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: Published
• Publication Date: 14-Dec-2022
• ICS: 83.120 - Reinforced plastics
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.18 - Reinforced Thermosetting Plastics

Standards Content (Sample)

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.
Designation: D3916 − 22
Standard Test Method for
Tensile Properties of Pultruded Glass-Fiber-Reinforced
1
Plastic Rod
This standard is issued under the fixed designation D3916; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* Reinforced Polymer Matrix Composite Bars
E4 Practices for Force Calibration and Verification of Test-
1.1 This test method describes a procedure for determining
ing Machines
the tensile properties of a pultruded, glass-fiber-reinforced
E83 Practice for Verification and Classification of Exten-
thermosetting plastic rod of diameters ranging from 2.03 mm
someter Systems
(0.08 in.) to 12.7 mm (0.5 in.). Test Method D7205/D7205M is
E177 Practice for Use of the Terms Precision and Bias in
an alternative test method to determine tensile properties of
ASTM Test Methods
fiber-reinforced composite rods of diameters bigger than 12.7
E691 Practice for Conducting an Interlaboratory Study to
mm (0.5 in.).
Determine the Precision of a Test Method
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
3. Terminology
only.
3.1 For definitions of terms used in this standard and
1.3 This standard does not purport to address all of the
associated with plastics issues refer to the terminology con-
safety concerns, if any, associated with its use. It is the
tained in D883 unless otherwise specified.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
4. Significance and Use
mine the applicability of regulatory limitations prior to use.
4.1 The high axial-tensile strength and the low transverse-
Specific hazards statements are given in 6.1 and 8.4.3.
compressive strength of pultruded rod combine to present some
NOTE 1—There is no known ISO equivalent to this standard.
unique problems in determining the tensile strength of this
1.4 This international standard was developed in accor-
material with conventional test grips. The high transverse-
dance with internationally recognized principles on standard-
compressive forces generated in the conventional method of
ization established in the Decision on Principles for the
gripping tend to crush the rod, thereby causing premature
Development of International Standards, Guides and Recom-
failure. In this test method, aluminum-alloy tabs contoured to
mendations issued by the World Trade Organization Technical
the shape of the rod reduce the compressive forces imparted to
Barriers to Trade (TBT) Committee.
the rod, thus overcoming the deleterious influence of conven-
tional test grips.
2. Referenced Documents
4.2 Tensile properties are influenced by specimen
2
2.1 ASTM Standards:
preparation, strain rate, thermal history, and environmental
D618 Practice for Conditioning Plastics for Testing
conditions at the time of testing. Consequently, where precise
D883 Terminology Relating to Plastics
comparative results are desired, these factors must be carefully
D7205/D7205M Test Method for Tensile Properties of Fiber
controlled.
4.3 Tensile properties provide useful data for many engi-
1
This test method is under the jurisdiction of ASTM Committee D20 on Plastics
neering design purposes. However, due to the high sensitivity
and is the direct responsibility of Subcommittee D20.18 on Reinforced Thermoset-
of these properties to strain rate, temperature, and other
ting Plastics.
environmental conditions, data obtained by this test method
Current edition approved Dec. 15, 2022. Published January 2023. Originally
shall not, by themselves, be considered for applications involv-
approved in 1980. Last previous edition approved in 2016 as D3916 - 08(2016).
DOI: 10.1520/D3916-22.
ing load-time scales or environmental conditions that differ
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
widely from the test conditions. In cases where such dissimi-
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
larities are apparent, the sensitivities to strain rate, including
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. impact and creep, as well as to the environment, shall be
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, Wes
...

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: D3916 − 08 (Reapproved 2016) D3916 − 22
Standard Test Method for
Tensile Properties of Pultruded Glass-Fiber-Reinforced
1
Plastic Rod
This standard is issued under the fixed designation D3916; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope Scope*
1.1 This test method describes a procedure for determining the tensile properties of a pultruded, glass-fiber-reinforced
1
thermosetting plastic rod of diameters ranging from 3.2 mm (2.03 mm (0.08 ⁄8 in.) to 25.4 mm (1 in.). Little test specimen12.7 mm
(0.5 in.). Test Method D7205/D7205M preparation is required; however, reusable aluminum tab grip adapters (is an alternative test
method to determine tensile propertiesFig. 1) of appropriate size are required to prevent premature failure of the specimens at the
grips. of fiber-reinforced composite rods of diameters bigger than 12.7 mm (0.5 in.).
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 healthsafety, health, and environmental practices and determine
the applicability of regulatory limitations prior to use. Specific hazards statements are given in Note 36.1 and Note 48.4.3.
NOTE 1—There is no known ISO equivalent to this standard.
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:
D618 Practice for Conditioning Plastics for Testing
D883 Terminology Relating to Plastics
D638D7205/D7205M Test Method for Tensile Properties of PlasticsFiber Reinforced Polymer Matrix Composite Bars
E4 Practices for Force Calibration and Verification of Testing Machines
E83 Practice for Verification and Classification of Extensometer Systems
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
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 April 1, 2016Dec. 15, 2022. Published April 2016January 2023. Originally approved in 1980. Last previous edition approved in 2008 as
D3916 - 08. DOI: 10.1520/D3916-08R16.2016 as D3916 - 08(2016). DOI: 10.1520/D3916-22.
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.
*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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D3916 − 22
FIG. 1 General Schematic of Tab Grip Adapters
3. Terminology
3.1 For definitions of terms used in this standard and associated with plastics issues refer to the terminology contained in D883
unless otherwise specified.
4. Significance and Use
4.1 The high axial-tensile strength and the low transverse-compressive strength of pultruded rod combine to present some unique
problems in determining the tensile strength of this material with conventional test grips. The high transverse-compressive forces
generated in the conventional method of gripping tend to crush the rod, thereby causing premature failure. In this test method,
aluminum-alloy tabs contoured to the shape of the rod reduce the compressive forces imparted to the rod, thus overcoming the
deleterious influence of conventional test grips.
4.2 Tensile properties are influenced by specimen preparation, strain rate, thermal history, and the environmental conditions at the
time of testing. Consequently, where precis
...