Bond Strength Testing
Bond strength generally involves determining the stress required to rupture a bond formed by an adhesive between two metal blocks. Often the test involves the measurement of the shear and flexural bond strength of a bonding agent or a comparison of bonding agents under varying environmental conditions. The test may compare the fractured surface produced to failure analysis results within the adhesive interphase region.
Orthodontics and medical adhesives are often tested using this method, although this general testing is used on a variety of products from paper to laminates to linoleum to construction adhesives.
Bond strength testing can be carried out on a range of Lloyd Instruments materials testing machines together with NEXYGENPlus data analysis software when more comprehensive testing results are required.
Common standards for determining bond strength
- ASTM D952
Typical graph showing bond strength test.
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