ASTM D3164-03(2017)
(Test Method)Standard Test Method for Strength Properties of Adhesively Bonded Plastic Lap-Shear Sandwich Joints in Shear by Tension Loading
Standard Test Method for Strength Properties of Adhesively Bonded Plastic Lap-Shear Sandwich Joints in Shear by Tension Loading
SIGNIFICANCE AND USE
4.1 Due to the increased use of adhesively bonded plastics as a result of the inherent advantages afforded by bonded rather than mechanically fastened joints, particularly the alleviation of stress risers and stress cracking, there is a need for standard tests by which joints of various substrates and adhesives can be compared. This test method is intended to meet such a need.
4.2 This test method is limited to test temperatures below the softening point of the subject adherends, and is not intended for use on anisotropic adherends such as reinforced plastic laminates.
4.3 The misuse of strength values obtained from this test method as design stress allowable values for structural joints could lead to product failure, property damage, and human injury.
4.4 The apparent shear strength of an adhesive obtained from a given small single-lap specimen may differ from that obtained from a joint made with different adherends or by a different bonding process. The normal variation of temperature and moisture in the service environment causes the adherends and the adhesive to swell and shrink. The adherends and adhesive are likely to have different thermal and moisture coefficients of expansion.
4.5 Even in small specimens, short-term environmental changes can induce internal stresses or chemical changes in the adhesive that permanently affect the apparent strength and other mechanical properties of the adhesive. The problem of predicting joint behavior in a changing environment is even more difficult if a different type of adherend is used in a larger structural joint than was used in the small specimen.
4.6 The apparent shear strength measured with a single-lap specimen is not suitable for determining allowable design stresses for designing structural joints that differ in any manner from the joints tested without thorough analysis and understanding of the joint and adhesive behaviors.
4.7 Single-lap tests may be used for comparing and selecting adhesives ...
SCOPE
1.1 This test method is intended to complement Test Method D1002 and Test Method D3163 and extend its application to single-lap-shear adhesive joints employing plastic adherends. The test method is useful for generating comparative shear strength data for joints made from a number of plastics. It can also provide a means by which several plastics surface treatments can be compared.
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 1: A complete metric companion to Test Method D3164 has been developed — D3164M.
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.
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
Relations
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: D3164 − 03 (Reapproved 2017)
Standard Test Method for
Strength Properties of Adhesively Bonded Plastic Lap-Shear
Sandwich Joints in Shear by Tension Loading
This standard is issued under the fixed designation D3164; 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 D2093 Practice for Preparation of Surfaces of Plastics Prior
to Adhesive Bonding
1.1 ThistestmethodisintendedtocomplementTestMethod
D2651 GuideforPreparationofMetalSurfacesforAdhesive
D1002 and Test Method D3163 and extend its application to
Bonding
single-lap-shear adhesive joints employing plastic adherends.
D3163 Test Method for Determining Strength ofAdhesively
The test method is useful for generating comparative shear
Bonded Rigid Plastic Lap-Shear Joints in Shear by Ten-
strength data for joints made from a number of plastics. It can
sion Loading
also provide a means by which several plastics surface treat-
D3164M Test Method for Strength Properties ofAdhesively
ments can be compared.
Bonded Plastic Lap-Shear Sandwich Joints in Shear by
1.2 The values stated in SI units are to be regarded as the
Tension Loading (Withdrawn 2012)
standard. The values given in parentheses are for information
D4896 Guide for Use ofAdhesive-Bonded Single Lap-Joint
only.
Specimen Test Results
E4 Practices for Force Verification of Testing Machines
NOTE1—AcompletemetriccompaniontoTestMethodD3164hasbeen
developed — D3164M.
3. Terminology
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 3.1 Definitions—Many terms in this test method are defined
responsibility of the user of this standard to establish appro-
in Terminology D907.
priate safety and health practices and determine the applica-
4. Significance and Use
bility of regulatory limitations prior to use.
1.4 This international standard was developed in accor-
4.1 Due to the increased use of adhesively bonded plastics
dance with internationally recognized principles on standard-
asaresultoftheinherentadvantagesaffordedbybondedrather
ization established in the Decision on Principles for the
than mechanically fastened joints, particularly the alleviation
Development of International Standards, Guides and Recom-
of stress risers and stress cracking, there is a need for standard
mendations issued by the World Trade Organization Technical
tests by which joints of various substrates and adhesives can be
Barriers to Trade (TBT) Committee.
compared. This test method is intended to meet such a need.
4.2 This test method is limited to test temperatures below
2. Referenced Documents
the softening point of the subject adherends, and is not
2.1 ASTM Standards:
intended for use on anisotropic adherends such as reinforced
D907 Terminology of Adhesives
plastic laminates.
D1002 Test Method for Apparent Shear Strength of Single-
4.3 The misuse of strength values obtained from this test
Lap-Joint Adhesively Bonded Metal Specimens by Ten-
method as design stress allowable values for structural joints
sion Loading (Metal-to-Metal)
could lead to product failure, property damage, and human
injury.
4.4 The apparent shear strength of an adhesive obtained
This test method is under the jurisdiction of ASTM Committee D14 on
from a given small single-lap specimen may differ from that
AdhesivesandisthedirectresponsibilityofSubcommitteeD14.40onAdhesivesfor
Plastics. obtained from a joint made with different adherends or by a
Current edition approved April 1, 2017. Published May 2017. Originally
different bonding process.The normal variation of temperature
approved in 1973. Last previous edition approved in 2011 as D3164 – 03 (2011).
and moisture in the service environment causes the adherends
DOI: 10.1520/D3164-03R17.
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 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
D3164 − 03 (2017)
and the adhesive to swell and shrink. The adherends and 63°C (65°F) and the relative humidity to 63 %. If ambient
adhesive are likely to have different thermal and moisture laboratory conditions are employed the same degree of control
coefficients of expansion.
is required.
4.5 Even in small specimens, short-term environmental
6. Test Specimen
changes can induce internal stresses or chemical changes in the
adhesive that permanently affect the apparent strength and
6.1 Make specimens that conform to the form and dimen-
other mechanical properties of the adhesive. The problem of
sions shown in Fig. 1. It is recommended that the test
predicting joint behavior in a changing environment is even
specimens be cut from the test panel depicted in Fig. 2, but
more difficult if a different type of adherend is used in a larger
individual specimens may be prepared if preferred. The rec-
structural joint than was used in the small specimen.
ommendedmetalsubstrateisAlloy2024-T3aluminum,1.62 6
4.6 The apparent shear strength measured with a single-lap 0.125 mm (0.064 6 0.005 in.). A surface treatment such as
specimen is not suitable for determining allowable design MethodAof Guide D2651 is recommended for the aluminum.
stresses for designing structural joints that differ in any manner If a metal substrate other than aluminum is employed, then one
from the joints tested without thorough analysis and under-
of the other surface preparations in Guide D2651 is suggested.
standing of the joint and adhesive behaviors.
The recommended length of overlap is 12.7 6 0.25 mm (0.5 6
0.01 in.). The thickness of the plastic in the metal/adhesive/
4.7 Single-lap tests ma
...
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