ASTM D4501-01(2014)

Standard Test Method for Shear Strength of Adhesive Bonds Between Rigid Substrates by the Block-Shear Method

SIGNIFICANCE AND USE
5.1 This test method provides an estimate of the shear strength of an adhesive on various machinable and nonmachinable substrate materials. It is particularly applicable for testing bonds between ceramic, glass, magnet moldings, and plastic parts with one flat face where machining would be difficult or impractical.
SCOPE
1.1 This test method describes a procedure and fixture used to determine shear strengths of adhesives used to bond materials with moduli higher than the modulus of the adhesive. The size and shape of the specimens are variable within the physical restraints of the fixture.  
1.2 The values stated in SI units are to be regarded as the 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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 28-Feb-2014
• ICS: 83.180 - Adhesives
• Technical Committee: D14 - Adhesives
• Drafting Committee: D14.40 - Adhesives for Plastics

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D4501 − 01 (Reapproved 2014)
Standard Test Method for
Shear Strength of Adhesive Bonds Between Rigid
1
Substrates by the Block-Shear Method
This standard is issued under the fixed designation D4501; 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 5. Significance and Use
1.1 This test method describes a procedure and fixture used
5.1 This test method provides an estimate of the shear
to determine shear strengths of adhesives used to bond mate- strength of an adhesive on various machinable and nonmachin-
rials with moduli higher than the modulus of the adhesive. The
able substrate materials. It is particularly applicable for testing
size and shape of the specimens are variable within the bonds between ceramic, glass, magnet moldings, and plastic
physical restraints of the fixture.
parts with one flat face where machining would be difficult or
impractical.
1.2 The values stated in SI units are to be regarded as the
standard.
6. Apparatus
1.3 This standard does not purport to address all of the
6.1 Testing Machine, conforming to the requirements of
safety concerns, if any, associated with its use. It is the
Practices E4, with a capacity of not less than 44 kN (10 000
responsibility of the user of this standard to establish appro-
lbf) in tension.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
6.2 Shearing Fixture—Perform the tests by using a shearing
fixture consisting of a holding block and a shearing tool (Figs.
2. Referenced Documents
1 and 2).The holding block can accommodate specimens up to
2
1
80 by 80 by 13 mm (3 by 3 by ⁄2 in.). For small specimens as
2.1 ASTM Standards:
shown in Fig. 3B, an adapter plate (Fig. 4) can be inserted into
D907 Terminology of Adhesives
the holding block to keep the shearing blade within its guides
E4 Practices for Force Verification of Testing Machines
and to locate the specimen under the clamp.The shearing blade
2.2 ASTM Adjuncts:
1
3
can accommodate specimens up to 30 by 30 by 13 mm (1 ⁄8 by
Shearing Fixture Drawings
3
1 1
1 ⁄8 by ⁄2 in.).
3. Terminology
7. Test Specimens
3.1 Many terms used in this test method are defined in
7.1 Test specimens can be any size within the limits of the
Terminology D907.
shearingfixturecapacity,asgivenin6.2.Suggestedsizesareas
follows:
4. Summary of Test Method
1
7.1.1 Metal Blocks—25by25by6mm(1by1by ⁄4 in.).
4.1 In this test method, blocks, plates, or disks are bonded
7.1.2 Ferrite or Ceramic Blocks—25 by 18 by 13 mm (1 by
together, and the maximum force to shear them apart is
3 1
⁄4 by ⁄2 in.).
determined.
7.1.3 Wood or Plastic Blocks—25 by 25 by 13 mm (1 by 1
1
by ⁄2 in.).
1
7.1.4 Glass Plates—75 by 75 by 13 mm (3 by 3 by ⁄2 in.).
1
This test method is under the jurisdiction of ASTM Committee D14 on
AdhesivesandisthedirectresponsibilityofSubcommitteeD14.40onAdhesivesfor
7.2 Prepare the adhesive and apply in accordance with the
Plastics.
recommendations of the adhesive manufacturer. Assemble the
Current edition approved March 1, 2014. Published March 2014. Originally
ε1 adhesive-coated specimens, and bond them in accordance with
approved in 1985. Last previous edition approved in 2009 as D4501 – 09 . DOI:
the procedure under investigation.
10.1520/D4501-01R14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
NOTE 1—Assemble the thrust surfaces, where the straight-sided speci-
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
men contacts the fixture, so that they are parallel to the fixture within
Standards volume information, refer to the standard’s Document Summary page on
0.005 in./in. (0.005 mm/mm). Center round or shaped specimens within
the ASTM website.
3
Detailed drawings of the fixture are available from ASTM International the shear blade in such a way that a moment is not applied to the specimen
Headquarters. Order Adjunct No. ADJD4501. Original adjunct produced in 1985. during shearing.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D4501 − 01 (2014)
7.3 Remove any flash or fillets on the loaded side prior to
testing. Fig. 3 shows typical specimens after bonding.
7.4 Test at least five specimens for each test condition.
8. Procedure
8.1 Mount the shear fixture in the testing machine with the
holding block on top.
8.2 Place the specimen in the shearing fixture in such a way
that one of the adherends is engaged by the holding block and
the other by the shearing tool (Fig. 5). Clo
...