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ASTM D 2719 : 2019

Current
Current

The latest, up-to-date edition.

Standard Test Methods for Wood Structural Panels in Shear Through-the-Thickness
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

20-06-2019

These test methods determine the shear through-the-thickness properties of wood structural panels associated with shear distortion of the major axis.

1.1These test methods determine the shear through-the-thickness properties of wood structural panels associated with shear distortion of the major axis. Wood structural panels in use include plywood, oriented strand board, and composites of veneer and of wood-based layers. Three test methods are included which differ somewhat in their application:

  Test Method

Section

A. Small Panel Shear Test

5

B. Large Panel Shear Test

6

C. Two-Rail Shear Test

7

The choice of test method will be determined in part by the purpose of the tests, characteristics of test material, and equipment availability. In general, Test Method B or C for large specimens is preferred when equipment, amount of test material, and experimental plan permit.

1.1.1Test Method A: Small Panel Shear Test—This test method is suitable for testing small samples of uniform material including investigations of the effects of grain direction or orientation and of many raw materials and manufacturing process variables which influence shear properties uniformly throughout the specimen. The test method is unsuited for determining effects of grade and manufacturing features such as density variations, knots, and core gaps within the specimen.

1.1.2Test Method B: Large Panel Shear Test—This test method is regarded as giving the most accurate modulus of rigidity and is therefore recommended for elastic tests of materials to be used in stress analysis studies of test structures. This test method also yields excellent shear strength values for clear material. However, in spite of the large size of the specimen, failures generally occur only in narrow zones at the perimeter of the test area. This characteristic, a result of the heavy perimeter framing, causes this test method to be generally unsuited for determining grade and manufacturing effects such as density variations, core gaps, and knots that are not uniformly distributed throughout the panel. Generally, only in cases where effects of these factors under conditions of heavy perimeter framing are desired, should the test method be applied.

1.1.3Test Method C: Two-Rail Shear Test—This test method is applicable to a wide variety of materials and problems. The specimen fabrication and test procedures are somewhat simpler than in Test Methods A and B. The specimen is free to shear parallel to its 24-in. (610-mm) length dimension anywhere within the 8-in. (203-mm) width between rails. Thus, the test method is well suited for determining grade and manufacturing effects such as core gaps and knots occupying and affecting small areas. The test method is not so ideally suited for determination of modulus of rigidity, but when adjusted for strain distribution effects, values approximating those obtained by Test Method B result. The test method simulates effects of heavy framing when expected planes of weakness are oriented perpendicular to rails and no framing at all when parallel to rails.

Note 1:A smaller scale version based on the principles of this two-rail shear method is contained in Test Methods D1037 Section 27. The results from Test Methods D1037 Section 27 may not be equivalent to the results from Test Methods D2719 Method C.

1.2Significant differences, moderate to small in magnitude, among the three test methods have been found to exist when these test methods are applied to plywood of clear straight-grained veneers. Therefore, when comparisons are made among test results, it is recommended that the same test method be used throughout.

1.3This 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.

1.4This 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.

Committee
D 07
DocumentType
Test Method
Pages
10
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM D 5457 : 2019 : REV B Standard Specification for Computing Reference Resistance of Wood-Based Materials and Structural Connections for Load and Resistance Factor Design
ASTM D 7033 : 2014 Standard Practice for Establishing Design Capacities for Oriented Strand Board (OSB) Wood-Based Structural-Use Panels

ASTM D 1037 : 2006 Standard Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel Materials
ASTM D 1037 : 2012 Standard Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel Materials
ASTM D 4442 : 2007 Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials
ASTM D 2395 : 1993 : R1997 : EDT 2 Standard Test Methods for Specific Gravity of Wood and Wood-Based Materials
ASTM D 4442 : 2015 Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
ASTM D 4442 : 2016 Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
ASTM D 2395 : 2017 : R2022 Standard Test Methods for Density and Specific Gravity (Relative Density) of Wood and Wood-Based Materials
ASTM D 2395 : 1993 : R1997 : EDT 1 Standard Test Methods for Specific Gravity of Wood and Wood-Based Materials
ASTM D 2395 : 2007 : REV A Standard Test Methods for Specific Gravity of Wood and Wood-Based Materials
ASTM D 1037 : 1999 Standard Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel Materials
ASTM D 2395 : 2017 Standard Test Methods for Density and Specific Gravity (Relative Density) of Wood and Wood-Based Materials
ASTM D 1037 : 2006 : REV A Standard Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel Materials
ASTM D 4442 : 2020 Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
ASTM D 1037 : 1978 Standard Methods of Evaluating the Properties of Wood-Base Fiber and Particle Panel Materials
ASTM D 2395 : 2014 : EDT 1 Standard Test Methods for Density and Specific Gravity (Relative Density) of Wood and Wood-Based Materials
ASTM D 2395 : 2014 Standard Test Methods for Density and Specific Gravity (Relative Density) of Wood and Wood-Based Materials
ASTM D 2395 : 2006 Standard Test Methods for Specific Gravity of Wood and Wood-Based Materials
ASTM D 2395 : 2007 : REV A : EDT 1 Standard Test Methods for Specific Gravity of Wood and Wood-Based Materials
ASTM D 2395 : 2002 Standard Test Methods for Specific Gravity of Wood and Wood-Based Materials
ASTM D 4442 : 1992 : R1997 : EDT 1 Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials
ASTM D 4442 : 1984 Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials
ASTM D 4442 : 1992 : R2003 Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials

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