ASTM D7332 – Standard Test Method for Measuring the Fastener Pull-Through Resistance of a Fiber-Reinforced Polymer Matrix Composite

ASTM D7332 – Fastener Pull-Through Resistance of a Fiber-Reinforced Polymer Matrix Composite

ASTM D7332  – 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.

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.

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.

This test method is consistent with the recommendations of CMH-17, which describes the desirable attributes of a fastener pull-through test method.

 *** Before conducting ASTM D7332 , it is important to read the entire specification in the relevant ASTM  publication.

Referenced Documents

ASTM Standardsa

ASTM D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement

ASTM D883 Terminology Relating to Plastics

ASTM D3171 Test Methods for Constituent Content of Composite Materials

ASTM D3410/D3410M Test Method for Compressive Properties of Polymer Matrix Composite Materials with Unsupported Gage Section by Shear Loading

ASTM D3878 Terminology for Composite Materials

ASTM D5229/D5229M Test Method for Moisture Absorption Properties and Equilibrium Conditioning of Polymer Matrix Composite Materials

ASTM D5687/D5687M Guide for Preparation of Flat Composite Panels with Processing Guidelines for Specimen Preparation

ASTM E4 Practices for Force Verification of Testing Machines

ASTM E6 Terminology Relating to Methods of Mechanical Testing

ASTM E18 Test Methods for Rockwell Hardness of Metallic Materials

ASTM E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process

ASTM E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods

ASTM E456 Terminology Relating to Quality and Statistics

ASTM E1309 Guide for Identification of Fiber-Reinforced Polymer-Matrix Composite Materials in Databases

ASTM E1434 Guide for Recording Mechanical Test Data of Fiber-Reinforced Composite Materials in Databases