Adhesive bond strength tests screening

D-0905. Test Method for Strength Properties of Adhesive Bonds in shear by Compression Loading (Fig. 8). A basic compression shear test which is widely used in screening wood glues. It is also used in specifications D-3110 (on nonstructural wood laminating ad hesives), D-2559 and D-3024 (on exterior and interior structural wood laminating adhesives respectively) and D-4317 (on polyvinyl acetate based wood adhesives). 

Many of the durability testing concepts suggested for metal joints may also be useful with wood. One or more of the basic wood joint-strength tests (e.g., D-0897, D-0905, D-0906, etc.) could be combined with selected environmental exposure (D-0896, D-1151, D-1183, D-1828, D-4299, D-4300, etc.) to screen wood bonding adhesives for particular durability requirements. 

There are no D-14 standards specifically designed to test the durability of plastics or glass bonding adhesives. However, for screening purposes, one or more of the general-purpose adhesive strength tests could be combined with selected exposure and the associated strength loss measured. 

D-1002. Test Method for Strength Properties of Adhesives in Shear by Tension Loading (Metal-to-Metal). This is another of D-14 s earlier standards and may still be the most widely used in screening metal bonding adhesives. The matter of stress concentrations (especially edge effects) and associated limitations on interpretation and extrapolation of data from this test have been widely studied and clearly recognized. However, the specimen (Fig. 3) is relatively easy to prepare, and the test has still proven useful. Standards D-2295 and D-2557 are the procedures for running D-1002 at elevated and reduced temperatures, respectively. 

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