ASTM D5766/D5766M-07 - 15.10.2007
 
1. Scope

1.1 This test method determines the open-hole tensile strength of multidirectional polymer matrix composite laminates reinforced by high-modulus fibers. The composite material forms are limited to continuous-fiber or discontinuous-fiber (tape or fabric, or both) reinforced composites in which the laminate is balanced and symmetric with respect to the test direction. The range of acceptable test laminates and thicknesses are described in 8.2.1.

1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text the inch-pound units are shown in brackets. 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.

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.

 
2. Referenced Documents

D792-20

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

E1309-00

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

D5229/D5229M-20

Standard Test Method for Moisture Absorption Properties and Equilibrium Conditioning of Polymer Matrix Composite Materials

E691-23

Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

E456-13a(2022)e1

Standard Terminology Relating to Quality and Statistics (Includes all amendments and changes 4/16/2024).

E177-26a

Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods (Includes all amendments and changes 5/14/2026).

D883-26b

Standard Terminology Relating to Plastics (Includes all amendments and changes 8/24/2026).

E1434-00

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

D3878-26

Standard Terminology for Composite Materials

D3171-22

Standard Test Methods for Constituent Content of Composite Materials

D3039/D3039M-17(2025)

Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials

D2734-23

Standard Test Methods for Void Content of Reinforced Plastics

D2584-25

Standard Test Method for Ignition Loss of Cured Reinforced Resins

E6-25

Standard Terminology Relating to Methods of Mechanical Testing