SCOPE: http://www.astm.org/Standards/D7332.htm
ASTM D7332 / D7332M - 15a
Standard Test Method for Measuring the Fastener Pull-Through Resistance of a Fiber-Reinforced
Polymer Matrix Composite
1.1 This test method determines the fastener pull-through resistance of multidirectional
polymer matrix composites reinforced by high-modulus fibers. Fastener pull-through
resistance is characterized by the force-versus-displacement response exhibited when
a mechanical fastener is pulled through a composite plate, with the force applied
perpendicular to the plane of the plate. The composite material forms are limited
to continuous-fiber or discontinuous-fiber (tape or fabric, or both) reinforced composites
for which the laminate is symmetric and balanced with respect to the test direction.
The range of acceptable test laminates and thicknesses is defined in 8.2.
1.2 Two test procedures and configurations are provided. The first, Procedure A,
is suitable for screening and fastener development purposes. The second, Procedure
B, is configuration-dependent and is suitable for establishing design values. Both
procedures can be used to perform comparative evaluations of candidate fasteners/fastener
system designs.
1.3 The specimens described herein may not be representative of actual joints which
may contain one or more free edges adjacent to the fastener, or may contain multiple
fasteners that can change the actual boundary conditions.
1.4 This test method is consistent with the recommendations of CMH-17, which describes
the desirable attributes of a fastener pull-through test method.
1.5 The values stated in either SI units or inch-pound units are to be regarded separately
as standard. The values stated in each system are not exact equivalents; therefore,
each system must be used independently of the other. Combining values from the two
systems may result in nonconformance with the standard.
1.5.1 Within the text the inch-pound units are shown in brackets.
1.6 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.
Extracted, with permission from D7332, Standard Test Method for Measuring the Fastener
Pull-Through Resistance of a Fiber-Reinforced Polymer Matrix Composite, copyright
ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy
of the complete standard may be purchased from ASTM International, www.astm.org.
Accessories:
Upper fixture attachment is supplied with 1/2” -20 female coupling (Common adapter
sizes include:)
Model No. M01S21 - 1/2” Male Clevis (Type B) to 1/2” -20 Threaded Stud
Model No. M02S21 - 5/8” Male Clevis (Type C) to 1/2” -20 Threaded Stud
Model No. M03S21 - 1.25” Male Clevis (Type D) to 1/2” -20 Threaded Stud
Model No. M12S21 - 12mm Male Clevis (Type O) to 1/2” -20 Threaded Stud
Model No. S36S21 - 1” -14 to 1/2” -20 Threaded Step Stud
Model No. LN21 - 1/2” -20 Threaded Locking Nut with Knurled OD
Lower fixture attachment is supplied with 1” -14 female coupling. (Common adapter
sizes include:)
Model No. M03S36 - 1.25” Male Clevis (Type D) to 1” -14 Threaded Stud
Model No. S42S36 - 1.25” -12 to 1” -14 Threaded Step Stud
Model No. S48S36 - 1.5” -12 to 1” -14 Threaded Step Stud
Model No. S60S36 - 2” -12 to 1” -14 Threaded Step Stud
Model No. LN36 - 1” -14 Threaded Locking Nut with Knurled OD
Quote: Model No. ASTM.D7332.20
ENGLISH (SAE) Fastener Pull Through Test Fixture (Tensile Mode)
The test fixture supplies a tensile force through the yoke and onto the fastener.
The fixture includes a base plate with 1” -14 threaded coupling for mounting purposes,
a set of yoke assemblies and restraining plate with clearance holes for shank size
5/32”, 3/16”, 1/4”, 5/16”, and 3/8” diameter . Each yoke and pin assembly has
a 1/2” -20 threaded loading coupling. Each restraining plate bolts to the base plate
and can be easily exchanged. Constructed of stainless steel in accordance with ASTM
D7332, Procedure B.
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