Standard Test Method for Determining Durability of Adhesive Joints Stressed in Shear by Tension Loading

SCOPE
1.1 This test method provides 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 and health 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 ar for information only.

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Publication Date
09-Oct-2001
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ASTM D2919-01 - Standard Test Method for Determining Durability of Adhesive Joints Stressed in Shear by Tension Loading
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D2919–01
Standard Test Method for
Determining Durability of Adhesive Joints Stressed in Shear
1
by Tension Loading
This standard is issued under the fixed designation D 2919; 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 4. Significance and Use
1.1 This test method provides data for assessing the dura- 4.1 The combination of stress and moisture decreases the
bilityofadhesivelap-shearjointswhilestressedincontactwith durability of most adhesive joints. Stresses in the presence of
air, air in equilibrium with certain solutions, water, aqueous water or water vapor may cause some adhesive joints to fail at
solutions, or other environments at various temperatures. some small fraction of the stress required to break the dry joint.
1.2 This standard does not purport to address all of the The time to failure for a given adhesive joint generally
safety concerns, if any, associated with its use. It is the decreases with increasing stress, temperature, and relative
responsibility of the user of this standard to establish appro- humidity.
priate safety and health practices and determine the applica- 4.2 This test method may be used as an accelerated screen-
bility of regulatory limitations prior to use. Specific precau- ingtestforassessingthedurabilityofadhesivejoints.Itmaybe
tionary statements are given in 7.4. used to measure durability of adhesive joints exposed outdoors
1.3 The values stated in SI units are considered to be the or to environmental conditions experienced by adhesive joints
standard. The values in parentheses are for information only. in service. The tests may also be used to determine the effects
of various surface preparations or substrates on durabilities of
2. Referenced Documents
adhesive joints.
2.1 ASTM Standards: 4.3 The durability performance of various adhesives may be
2
D 907 Terminology of Adhesives
compared by using this test method under uniform sets of
D 1002 Test Method forApparent Shear Strength of Single- conditions.To assess the overall durability of a given adhesive,
Lap-Joint Adhesively Bonded Metal Specimens by Ten- lap-shear joints should be tested under a range of stress,
2
sion Loading (Metal-to-Metal)
relative humidity, and temperature. For a specific end use it
D 1828 Practice for Atmospheric Exposure of Adhesive- may be possible to obtain the needed durability data using only
2
Bonded Joints and Structures
one set of test conditions.
D 2294 Test Method for Creep Properties of Adhesives in
2 5. Apparatus
Shear by Tension Loading (Metal-to-Metal)
4
D 3165 Test Method for Strength Properties ofAdhesives in 5.1 Fixture, as shown in Fig. 1, is required for this test
Shear by Tension Loading of Single-Lap-Joint Laminated method, although a fixture such as described in Test Method
2
Assemblies D 2294 may also be suitable for the performance of this test.
3
E 4 Practices for Force Verification of Testing Machines 5.2 Testing Machine, or other suitable machine capable of
applying measured compressive loads. Force measurements
3. Terminology
have an accuracy of 61 % of any reading when calibrated in
3.1 Definitions—Definitions of terms in this test method
compliance with Practices E 4 requirements. Machine that is
may be found in Terminology D 907. equipped with a suitable loading base as shown in Fig. 1, shall
be used as a loading mechanism.
5.3 Outdoor Weathering Racks (Standard) are recom-
1
This test method is under the jurisdiction of ASTM Committee D14 on
mended (Practice D 1828), but any stable frame may be used
Adhesives and is the direct responsibility of Subcommittee D14.80 on Metal
Bonding Adhesives.
Current edition approved Oct. 10, 2001. Published December 2001. Originally
published as D 2919 – 71. Last previous edition D 2919 – 00.
2 4
Annual Book of ASTM Standards, Vol 15.06. Detailed working drawings for the construction of the durability test apparatus
3
Annual Book of ASTM Standards, Vol 03.01. are available from ASTM Headquarters. Request Adjunct No. ADJD2919.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D2919
FIG. 1 Durability Test Apparatus
(for example, galvanized pipe or painted steel channel). No prepared in accordance with Test Method D 1002, except that
other special apparatus is required for outdoor tests.
the dimensions of the test specimens shall be as shown in Fig.
2.
6. Test Specimens
6.2 If the fixture in Fig. 1 is use
...

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