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ASTM D3528-96(2016)

(Test Method)

Standard Test Method for Strength Properties of Double Lap Shear Adhesive Joints by Tension Loading

Standard Test Method for Strength Properties of Double Lap Shear Adhesive Joints by Tension Loading

SIGNIFICANCE AND USE
4.1 This test method is designed to produce shear property data for the process control and specification of adhesives. This test method may also be useful for research and development of adhesives.  
4.2 Lap shear properties vary with specimen configuration preparation, speed, and environment of testing. Consequently, where precise comparative results are desired, these factors must be carefully controlled and reported.
SCOPE
1.1 This test method covers the determination of the tensile shear strengths of adhesives for bonding metals when tested in an essentially peel-free standard specimen that develops adhesive stress distribution representative of that developed in a typical low-peel production-type structural joint. The reproducibility of the strengths achieved are directly related to conformance with specified conditions of preparation and testing.  
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 health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Published
Publication Date
30-Apr-2016
ICS
83.180 - Adhesives
Technical Committee
D14 - Adhesives
Drafting Committee
D14.80 - Metal Bonding Adhesives
Current Stage
Ref Project

Relations

Refers
ASTM E4-14 - Standard Practices for Force Verification of Testing Machines
Effective Date
01-Jun-2014
Refers
ASTM B265-20 - Standard Specification for Titanium and Titanium Alloy Strip, Sheet, and Plate
Effective Date
01-Jan-2020
Refers
ASTM B265-20a - Standard Specification for Titanium and Titanium Alloy Strip, Sheet, and Plate
Effective Date
01-Apr-2020
Refers
ASTM B36/B36M-18 - Standard Specification for Brass Plate, Sheet, Strip, And Rolled Bar
Effective Date
01-Oct-2018
Refers
ASTM B152/B152M-19 - Standard Specification for Copper Sheet, Strip, Plate, and Rolled Bar
Effective Date
01-Oct-2019
Refers
ASTM B265-15 - Standard Specification for Titanium and Titanium Alloy Strip, Sheet, and Plate
Effective Date
01-Nov-2015
Referred By
ASTM D6465-99(2016) - Standard Guide for Selecting Aerospace and General Purpose Adhesives and Sealants
Effective Date
01-May-2016
Referred By
ASTM D4896-01(2016) - Standard Guide for Use of Adhesive-Bonded Single Lap-Joint Specimen Test Results
Effective Date
01-May-2016

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ASTM D3528-96(2016) - Standard Test Method for Strength Properties of Double Lap Shear Adhesive Joints by Tension LoadingASTM D3528-96(2016) - Standard Test Method for Strength Properties of Double Lap Shear Adhesive Joints by Tension Loading
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ASTM D3528-96(2016) - Standard Test Method for Strength Properties of Double Lap Shear Adhesive Joints by Tension Loading
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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: D3528 − 96 (Reapproved 2016)
Standard Test Method for
Strength Properties of Double Lap Shear Adhesive Joints by
1
Tension Loading
This standard is issued under the fixed designation D3528; 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.
INTRODUCTION
The accuracy of the results of strength tests of adhesive bonds will depend on the conditions under
whichthebondingprocessiscarriedout.Unlessotherwiseagreeduponbetweenthemanufacturerand
the purchaser, the bonding conditions should be prescribed by the manufacturer of the adhesive. In
order to ensure that complete information is available to the individual conducting the tests, the
manufacturer of the adhesive should furnish numerical values and other specific information for each
of the following variables:
(1) Surface preparation
(2) Mixing directions
(3) Adhesive application
(4) Assembly conditions
(5) Curing conditions
(6) Testing conditions
Arangemaybeprescribedforanyvariablebythemanufactureroftheadhesiveifitcanbeassumed
by the test operator that any arbitrarily chosen value within such a range or any combination of such
values for several variables will be acceptable to both the manufacturer and the purchaser of the
adhesive.
1. Scope 2. Referenced Documents
2
1.1 This test method covers the determination of the tensile 2.1 ASTM Standards:
shear strengths of adhesives for bonding metals when tested in A167 Specification for Stainless and Heat-Resisting
an essentially peel-free standard specimen that develops adhe- Chromium-Nickel Steel Plate, Sheet, and Strip (With-
3
sive stress distribution representative of that developed in a drawn 2014)
typical low-peel production-type structural joint. The repro- B36/B36M Specification for Brass Plate, Sheet, Strip, And
ducibility of the strengths achieved are directly related to Rolled Bar
conformance with specified conditions of preparation and B152/B152M Specification for Copper Sheet, Strip, Plate,
testing. and Rolled Bar
B209 Specification for Aluminum and Aluminum-Alloy
1.2 The values stated in SI units are to be regarded as the
Sheet and Plate
standard. The values given in parentheses are for information
B265 Specification for Titanium and Titanium Alloy Strip,
only.
Sheet, and Plate
1.3 This standard does not purport to address all of the
D618 Practice for Conditioning Plastics for Testing
safety concerns, if any, associated with its use. It is the
D907 Terminology of Adhesives
responsibility of the user of this standard to establish appro-
E4 Practices for Force Verification of Testing Machines
priate safety and health practices and determine the applica-
E122 Practice for Calculating Sample Size to Estimate,With
bility of regulatory limitations prior to use.
1 2
This test method is under the jurisdiction of ASTM Committee D14 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Adhesives and is the direct responsibility of Subcommittee D14.80 on Metal contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Bonding Adhesives Standards volume information, refer to the standard’s Document Summary page on
Current edition approved May 1, 2016. Published May 2016. Originally the ASTM website.
3
approved in 1976. Last previous edition approved in 2008 as D3528 – 96 (2008). The last approved version of this historical standard is referenced on
DOI: 10.1520/D3528-96R16. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D3528 − 96 (2016)
T =1.6mm
1
T =3.2mm
2
T =1.6mm
A = Test Gluelines
1
T =3.2mm
B = Spacer = T 2
2
A = Test Gluelines
C = Area in Test Grips
B = Area in Test Grips
D Shear Area
C = Shear areas
FIG. 1 Form and Dimensions of Type A Specimens
FIG. 2 Form and Dimensions of Type B Specimen
Specified Precision, the Average for a Characteristic of a
Cut the specimens from the appropriate test panels that have
Lot or Process
been prepared as prescribed in Section 7. For aluminum-alloy
E171 Practice for Conditioning and Testing Flexible Barrier
specimens the recommended thickness of the sheet is 3.24 6
Packaging
0.125 mm (0.125 6 0.005 in.). The recommended test overlap
length (L) for most metals, with adherends of the prescribed
3. Terminology
metal thickness and arranged as shown in Figs. 1 and 2, is 12.7
3.1 Definitions—Many terms in this test method are defined
6 0
...

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SCOPE
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This specification covers liquid optical adhesive for use in bonding glass to glass or other transparent adherends. The adhesive shall be in liquid form and free of solvent in order to avoid bubble formation in the adhesive layer. Each component shall be completely reactive. The adhesive may be heat-, catalyst-, or radiation-cured. Voltatility, color, viscosity, foreign particle content, refractive index, stability, light transmission, glass doublet preparation, environmental test, and bond strength tests shall be performed in accordance with the specified requirements.
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This test method is primarily intended for determining the relative peel resistance of adhesive bonds between flexible adherends by means of a T-type specimen using a tension testing machine. The bent, unbonded ends of the test specimen shall be clamped in the test grips of the tension testing machine and a load of a constant head speed shall be applied. An autographic recording of the load versus the head movement or load versus distance peeled shall be made. The peel resistance over a specified length of the bond line after the initial peak shall be determined.
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1.1 This test method is primarily intended for determining the relative peel resistance of adhesive bonds between flexible adherends by means of a T-type specimen.  
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This specification provides the means to measure and evaluate the performance of adhesives for structural or semistructural bonding of wood-to-wood in manufactured homes. Wood as used in this specification includes lumber, plywood, particleboard, gypsum board, and all materials having woodbased surfaces at the bondline. The adhesives can be classified according to resistance to deformation: Group A or structural, and Group B or semistructural. Also, the adhesives may be designated into three types, according to their recommended use based on their resistance to water and water vapor: Type 1 for interior and exterior use, Type 2 for weather-protected interior use, and Type 3 for interior use only. Different tests shall be performed in order to determine the following properties of adhesives: shear strength, gap-filling ability, total deformation resistance, moisture and temperature limitation during fabrication, high-temperature resistance, low-temperature resistance, moisture resistance, aging, oxidation resistance, and mold resistance.
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1.1 This specification provides the means to measure and evaluate the performance of adhesives for structural or semi-structural bonding of wood-to-wood in manufactured homes. Wood as used in this specification includes lumber, plywood, particleboard, gypsum board, and all materials having wood-based surfaces at the bondline. This specification does not cover other adhesives used in manufactured homes such as adhesives for carpet, floor tile, ceramic fixtures, plastic laminates, trim and millwork, and similar nonstructural applications.  
1.1.1 The performance of the adhesives is measured in the following tests:    
Number  
Test  
Section  
1  
Low Temperature  
16  
2  
Dry Lumber  
17  
3  
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4  
High Temperature  
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Type 3 Qualification  
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6  
Type 2 Qualification  
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7  
Aging, Film Oxidation  
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8  
Aging, Bond Oxidation  
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9  
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24  
10  
Mold  
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11  
Type 1 Qualification  
26  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
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.  
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Standard Test Method for Cleavage Strength of Metal-to-Metal Adhesive Bonds

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This test method covers the determination of the comparative cleavage strength properties of metal-to-metal adhesive bonds. The testing machine shall be capable of maintaining the rate of loading and shall compose of fixed member, movable member, and grips. Test specimens shall consist of metal pieces glued together according to the prescribed dimensions indicated in this standard method. Recommended metal specimens are the following: brass, copper, aluminum, steel, and phosphor bronze. Bonding and conditioning of specimen shall be done according to the procedure specified by the manufacturer of the adhesive. Testing procedure shall be in accordance to the load rate limits specified in this standard method. Cleavage strength shall be expressed in pounds per inch and shall be reported in three significant figures in addition to the following information: adhesive identification, preparation method, adhesive layer thickness, conditioning procedure used, testing room condition, specimen number, and loading rate.
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