ASTM D4501-01(2023)

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: D4501 − 01 (Reapproved 2023)
Standard Test Method for
Shear Strength of Adhesive Bonds Between Rigid
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 4. Summary of Test Method
1.1 This test method describes a procedure and fixture used 4.1 In this test method, blocks, plates, or disks are bonded
to determine shear strengths of adhesives used to bond mate- together, and the maximum force to shear them apart is
rials with moduli higher than the modulus of the adhesive. The determined.
size and shape of the specimens are variable within the
physical restraints of the fixture. 5. Significance and Use
5.1 This test method provides an estimate of the shear
1.2 The values stated in SI units are to be regarded as the
standard. strength of an adhesive on various machinable and nonmachin-
able substrate materials. It is particularly applicable for testing
1.3 This standard does not purport to address all of the
bonds between ceramic, glass, magnet moldings, and plastic
safety concerns, if any, associated with its use. It is the
parts with one flat face where machining would be difficult or
responsibility of the user of this standard to establish appro-
impractical.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
6. Apparatus
1.4 This international standard was developed in accor-
6.1 Testing Machine, conforming to the requirements of
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the Practices E4, with a capacity of not less than 44 kN
(10 000 lbf) in tension.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
6.2 Shearing Fixture—Perform the tests by using a shearing
Barriers to Trade (TBT) Committee.
fixture consisting of a holding block and a shearing tool (Figs.
1 and 2).The holding block can accommodate specimens up to
2. Referenced Documents
80 mm by 80 mm by 13 mm (3 in. by 3 in. by ⁄2 in.). For small
2.1 ASTM Standards:
specimens as shown in Fig. 3B, an adapter plate (Fig. 4) can be
D907 Terminology of Adhesives
inserted into the holding block to keep the shearing blade
E4 Practices for Force Calibration and Verification of Test-
within its guides and to locate the specimen under the clamp.
ing Machines
The shearing blade can accommodate specimens up to 30 mm
2.2 ASTM Adjuncts:
1 1 1
by 30 mm by 13 mm (1 ⁄8 in. by 1 ⁄8 in. by ⁄2 in.).
Shearing Fixture Drawings
7. Test Specimens
3. Terminology
7.1 Test specimens can be any size within the limits of the
3.1 Many terms used in this test method are defined in
shearingfixturecapacity,asgivenin6.2.Suggestedsizesareas
Terminology D907.
follows:
7.1.1 Metal Blocks—25 mm by 25 mm by 6 mm (1 in. by
This test method is under the jurisdiction of ASTM Committee D14 on
1 in. by ⁄4 in.).
AdhesivesandisthedirectresponsibilityofSubcommitteeD14.40onAdhesivesfor
7.1.2 Ferrite or Ceramic Blocks—25 mm by 18 mm by 13
Plastics.
3 1
mm (1 in. by ⁄4 in. by ⁄2 in.).
Current edition approved Jan. 1, 2023. Published January 2023. Originally
approved in 1985. Last previous edition approved in 2014 as D4501 – 01 (2014).
7.1.3 Wood or Plastic Blocks—25 mm by 25 mm by 13 mm
DOI: 10.1520/D4501-01R23.
(1 in. by 1 in. by ⁄2 in.).
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7.1.4 Glass Plates—75 mm by 75 mm by 13 mm (3 in. by
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 3 in. by ⁄2 in.).
the ASTM website.
3 7.2 Prepare the adhesive and apply in accordance with the
Detailed drawings of the fixture are available from ASTM International
Headquarters. Order Adjunct No. ADJD4501. Original adjunct produced in 1985. recommendations of the adhesive manufacturer. Assemble the
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