Adhesive bond strength tests cleavage

Test Method for Cleavage Strength of Metal-to-Metal Adhesive Bonds Test Methods for Viscosity of Adhesives... 

D 5041 Test Method for Fracture Strength in Cleavage of Adhesives in Bonded Joints... 

ISO 11343, 1993, Adhesives—Determination of dynamic resistance to cleavage of high strength adhesive bonds under impact conditions- Wedge impact method The method is mainly aimed for the characterisation of metal substrates suitable for automotive applications. An instrumented impact testing machine (pendulum type) of 50-300 J and. 3-5.5ms maximum capacity is required for this test. A blunt wedge of approximately 1 mm tip radius and included angle of 8 is impact driven into a bonded joint at 3 ms" for aluminum alloy adherends and 2 ms" for steel adherends. The impact event should be... 

ASTM D1062-02 Standard test method for cleavage strength of metal-to-metal adhesive bonds. 

BS 5350-Cl, Methods of Test for Adhesives - Adhesively Bonded Joints Mechanical Tests - Determination of Cleavage Strength of Adhesive Bonds, 1986. 

ASTM D3433, Standard test method for fracture strength in cleavage of adhesives in bonded metal joints. Annual Book of ASTM Standards, 15.06, 218-224 (1994). 

From the early days of adhesives testing it has been recognized that in-service loading on adhesive joints frequently subjects the bondline to cleavage stresses (more-or-less concentrated tensile stresses approximately perpendicular to the bondline). Thus another of D-14 s earlier standards is D-1062, Test Method for Cleavage Strength of Metal-to-Metal Adhesive Bonds. It employs a relatively simple specimen (Fig. 16) and loading procedure. 

Cleavage strength test for wood bonding adhesives. 

Cleavage strength test for plastics bonding adhesives. 

Cleavage strength test for glass bonding adhesives. 

Actual test specimens should also be made to verify strength of the adhesive. These specimens should be stressed in directions that are representative of the forces that the bond will see in service, i.e., shear, peel, tension, or cleavage. If possible, the specimens should be prepared and cured in the same manner as actual production assemblies. If time permits, specimens should also be tested in simulated service environments, e.g., high temperature and humidity. 

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