ASTM D7905/D7905M-19e1
Standard Test Method for Determination of the Mode II Interlaminar Fracture Toughness of Unidirectional Fiber-Reinforced Polymer Matrix Composites

Standard No.

ASTM D7905/D7905M-19e1

Release Date

2019

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D7905/D7905M-19e1

Scope

1.1 This test method covers the determination of the mode II interlaminar fracture toughness, GIIc, of unidirectional fiberreinforced polymer matrix composite laminates under mode II shear loading using the end-notched flexure (ENF) test (Fig. 1). 1.2 This method is limited to use with composites consisting of unidirectional carbon-fiberand glass-fiber-reinforced laminates. This limited scope reflects the experience gained in round robin testing. This test method may prove useful for other types and classes of composite materials; however, certain interferences have been noted (see Section 6). 1.3 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 necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.3.1 Within the text the inch-pound units are shown in brackets. 1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 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.

ASTM D7905/D7905M-19e1 Referenced Document

• ASTM D2584 Standard Test Method for Ignition Loss of Cured Reinforced Resins
• ASTM D2734 Standard Test Methods for Void Content of Reinforced Plastics
• ASTM D3171 Standard Test Methods for Constituent Content of Composite Materials
• ASTM D3878 Standard Terminology Composite Materials
• ASTM D5229/D5229M Standard Test Method for Moisture Absorption Properties and Equilibrium Conditioning of Polymer Matrix Composite Materials
• ASTM D5687/D5687M Standard Guide for Preparation of Flat Composite Panels with Processing Guidelines for Specimen Preparation
• ASTM D7264/D7264M Standard Test Method for Flexural Properties of Polymer Matrix Composite Materials*， 2021-01-01 Update
• ASTM D792 Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
• ASTM D883 Standard Terminology Relating to Plastics*， 2024-02-01 Update
• ASTM E122 Standard Practice for Calculating Sample Size to Estimate, With a Specified Tolerable Error, the Average for Characteristic of a Lot or Process
• ASTM E1309 Standard Guide for Identification of Fiber-Reinforced Polymer-Matrix Composite Materials in Databases*， 2024-04-22 Update
• ASTM E1434 Standard Guide for Recording Mechanical Test Data of Fiber-Reinforced Composite Materials in Databases*， 2024-04-22 Update
• ASTM E1471 Standard Guide for Identification of Fibers, Fillers, and Core Materials in Computerized Material Property Databases
• ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• ASTM E4 Standard Practices for Force Verification of Testing Machines
• ASTM E456 Standard Terminology for Relating to Quality and Statistics
• ASTM E6 Standard Terminology Relating to Methods of Mechanical Testing
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

ASTM D7905/D7905M-19e1 history

• 2019 ASTM D7905/D7905M-19e1 Standard Test Method for Determination of the Mode II Interlaminar Fracture Toughness of Unidirectional Fiber-Reinforced Polymer Matrix Composites
• 2019 ASTM D7905/D7905M-19 Standard Test Method for Determination of the Mode II Interlaminar Fracture Toughness of Unidirectional Fiber-Reinforced Polymer Matrix Composites
• 2014 ASTM D7905/D7905M-14 Standard Test Method for Determination of the Mode II Interlaminar Fracture Toughness of Unidirectional Fiber-Reinforced Polymer Matrix Composites