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ASTM D905 | Adhesives & Wood| Shear Testing

ASTM D905 allows for the study of shear strengths of adhesives used for bonding wood and other similar materials. Like other test methods involving wood, a lot of care has to be taken into account in regards to the specimen selection, conditioning, moisture content, temperature, etc. when attempting to compare results of these tests. A lot of factors can cause bias with the measurements, and all information surrounding the specimen preparation (wood moisture content, adhesive mixing, application of adhesive, curing conditions, etc.) should be recorded for reference.

Before conducting ASTM D905, it is important to read the entire specification in the relevant ASTM publication.

ASTM D905 | Adhesives & Wood| Shear Testing

    1. Prepare and condition the test specimen in accordance with the test standard. The test specimen consists of two blocks of wood bonded to each other with a slight offset.
    2. Place the test specimen in a shearing tool mounted in a test machine capable of applying a compressive load. The dimensions of the shearing jig required for this test are defined within the standard
    3. Apply a compressive load to the specimen at the constant position rate specified within the standard.
    4. Continue loading until failure.
Calculations:
  • Shear Stress

ASTM D905 | Adhesives & Wood | Peel Testing

ASTM D905 Recommended Equipment
Testing System
Fixturing
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