ASTM D1062 Cleavage Strength of Metal-to-Metal Adhesive Bonds

Scope:

The ASTM D1062 test method covers the determination of the comparative cleavage properties of adhesive bonds and examination of the loading configurations that measure adhesive resistance to cleavage. Metal-metal, metal-composite, and composite-composite couplings can all be subjected to the test. It can also be used to compare adhesives with other metallic materials that have been treated in any way. 

This test method is frequently utilized in the aerospace and defense industries, and it has proven to be very accurate in determining and predicting the environmental endurance of adherend surface preparations.

Procedure:

In order to comply with ASTM D1062, the specimen must be positioned correctly in the testing machine’s grips. When the tensile load is applied or the crosshead speed of the testing machine is set to idle, the load must be weighed precisely. The maximum load sustained by the specimen in pounds at failure is then recorded, together with the percentage of cohesion, adhesion, and contact failures.

Video 01: ASTM D1062 Cleavage strength of metal to metal adhesive bonds

Specimen size:

As per the ASTM D1062 test method, the specimens are normally 25 mm wide and 200 mm long, with an adherend thickness of approximately 2 mm. The bonded joints can be manufactured individually or as sections of a bonded panel.

Data:

Cleavage strength is defined as the breaking load, given in pounds per inch, according to ASTM  D1062. The result is represented by three significant figures if at all practicable.

Conclusion:

The ASTM D1062 test method covers the determination of the comparative cleavage properties of adhesive bonds and examination of the loading configurations that measure adhesive resistance to cleavage.