ASTM D2919-01(2023)
(Test Method)Standard Test Method for Determining Durability of Adhesive Joints Stressed in Shear by Tension Loading
Standard Test Method for Determining Durability of Adhesive Joints Stressed in Shear by Tension Loading
SIGNIFICANCE AND USE
4.1 The combination of stress and moisture decreases the durability of most adhesive joints. Stresses in the presence of water or water vapor may cause some adhesive joints to fail at some small fraction of the stress required to break the dry joint. The time to failure for a given adhesive joint generally decreases with increasing stress, temperature, and relative humidity.
4.2 This test method may be used as an accelerated screening test for assessing the durability of adhesive joints. It may be used to measure durability of adhesive joints exposed outdoors or to environmental conditions experienced by adhesive joints in service. The tests may also be used to determine the effects of various surface preparations or substrates on durabilities of adhesive joints.
4.3 The durability performance of various adhesives may be compared by using this test method under uniform sets of conditions. To assess the overall durability of a given adhesive, lap-shear joints should be tested under a range of stress, relative humidity, and temperature. For a specific end use it may be possible to obtain the needed durability data using only one set of test conditions.
SCOPE
1.1 This test method covers data for assessing the durability of adhesive lap-shear joints while stressed in contact with air, air in equilibrium with certain solutions, water, aqueous solutions, or other environments at various temperatures.
1.2 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 precautionary statements are given in 7.4.
1.3 The values stated in SI units are considered to be the standard. The values in parentheses are for information only.
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: D2919 − 01 (Reapproved 2023)
Standard Test Method for
Determining Durability of Adhesive Joints Stressed in Shear
by Tension Loading
This standard is issued under the fixed designation D2919; 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 D3165 Test Method for Strength Properties of Adhesives in
Shear by Tension Loading of Single-Lap-Joint Laminated
1.1 This test method covers data for assessing the durability
Assemblies
of adhesive lap-shear joints while stressed in contact with air,
E4 Practices for Force Calibration and Verification of Test-
air in equilibrium with certain solutions, water, aqueous
ing Machines
solutions, or other environments at various temperatures.
2.2 ASTM Adjuncts:
1.2 This standard does not purport to address all of the
Durability Test Apparatus Drawings
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3. Terminology
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
3.1 Definitions—Definitions of terms in this test method
Specific precautionary statements are given in 7.4.
may be found in Terminology D907.
1.3 The values stated in SI units are considered to be the
standard. The values in parentheses are for information only.
4. Significance and Use
1.4 This international standard was developed in accor-
4.1 The combination of stress and moisture decreases the
dance with internationally recognized principles on standard-
durability of most adhesive joints. Stresses in the presence of
ization established in the Decision on Principles for the
water or water vapor may cause some adhesive joints to fail at
Development of International Standards, Guides and Recom-
some small fraction of the stress required to break the dry joint.
mendations issued by the World Trade Organization Technical
The time to failure for a given adhesive joint generally
Barriers to Trade (TBT) Committee.
decreases with increasing stress, temperature, and relative
humidity.
2. Referenced Documents
4.2 This test method may be used as an accelerated screen-
2.1 ASTM Standards:
ingtestforassessingthedurabilityofadhesivejoints.Itmaybe
D907 Terminology of Adhesives
used to measure durability of adhesive joints exposed outdoors
D1002 Test Method for Apparent Shear Strength of Single-
or to environmental conditions experienced by adhesive joints
Lap-Joint Adhesively Bonded Metal Specimens by Ten-
in service. The tests may also be used to determine the effects
sion Loading (Metal-to-Metal)
of various surface preparations or substrates on durabilities of
D1828 Practice for Atmospheric Exposure of Adhesive-
adhesive joints.
Bonded Joints and Structures
D2294 Test Method for Creep Properties of Adhesives in
4.3 The durability performance of various adhesives may be
Shear by Tension Loading (Metal-to-Metal)
compared by using this test method under uniform sets of
conditions.To assess the overall durability of a given adhesive,
lap-shear joints should be tested under a range of stress,
This test method is under the jurisdiction of ASTM Committee D14 on
relative humidity, and temperature. For a specific end use it
Adhesives and is the direct responsibility of Subcommittee D14.80 on Metal
may be possible to obtain the needed durability data using only
Bonding Adhesives.
one set of test conditions.
Current edition approved Jan. 1, 2023. Published January 2023. Originally
approved in 1971. Last previous edition approved in 2014 as D2919 – 01 (2014).
DOI: 10.1520/D2919-01R23.
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 Detailed working drawings for the construction of the durability test apparatus
Standards volume information, refer to the standard’s Document Summary page on are available from ASTM International Headquarters. Order Adjunct No.
the ASTM website. ADJD2919. Original adjunct produced in 1980.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D2919 − 01 (2023)
5. Apparatus 5.3 Outdoor Weathering Racks (Standard) are recom-
3 mended (Practice D1828), but any stable frame may be used
5.1 Fixture, as shown in Fig. 1, is required for this test
(for example, galvanized pipe or painted steel channel). No
method, although a fixture such as described in Test Method
other special apparatus is required for outdoor tests.
D2294 may also be suitable for the performance of this test.
5.2 Testing Machine, or other suitable machine capable of
6. Test Specimens
applying measured compressive loads. Force measurements
have an accuracy of 61 % of any reading when calibrated in 6.1 The successful use of this test method depends on
preparing good quality lap-shear joints. The test joints must be
compliance with Practices E4 requirements. Machine that is
equipped with a suitable loading base as shown in Fig. 1, shall prepared carefully in accordance with the adhesive manufac-
be used as a loading mechanism. turer’s directions or in accordance with some other specified
FIG. 1 Durability Test Apparatus
D2919 − 01 (2023)
TABLE 1 Standard Test Environments
set of conditions agreed upon between the manufacturer and
the purchaser. It is recommended that the test joints be Test Environment
A B
Temperature Moisture Conditions
Number
prepared in accordance with Test Method D1002, except that
1 23 °C (73.4 °F) imme
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.