ASTM International

Standard Test Method for Adhesive-Bonded Surface Durability of Aluminum (Wedge Test)
 N D3762

Annotation

This test method2,3 simulates in a qualitative manner the forces and effects on an adhesive bond joint at metal-adhesive/ primer interface. It has proven to be highly reliable in determining and predicting the environmental durability of adherend surface preparations. The method has proven to be correlatable with service performance in a manner that is much more reliable than conventional lap shear or peel tests (Note 2).

NOTE 1—While this test method is intended for use in aluminum-toaluminum applications it may be used for determining surface durability of other metals and plastics provided consideration is given to thickness and rigidity of the adherends.

NOTE 2—This test method is not a quantitative fracture strength test method. To measure fracture strength see Test Method D3433.

The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2 Marceau, J. A., Moji, Y., and McMillan, J. C., "A Wedge Test for Evaluating Adhesive Bonded Surface Durability," 21st SAMPE Symposium, Vol 21, April 6–8, 1976.

3 Scardino,W. M., Marceau J. A., "Comparative Stressed Durability of Adhesive Bonded Aluminum Alloy Joints," Symposium on Durability of Adhesive Bonded Structures, U. S. Army Armament Research and Development Command, Dover, N. J. Oct, 27–29, 1976.