| 摘要 |
The present invention provides a method and system for testing the strength of adhesion of a bond between a coating or adhesive tape (14) and an underlying surface or substrate (12) to which it is adhesively bonded. In one embodiment an aperture (18) is formed through a surface of the substrate (12) and a coating of paint or adhesive tape (14) is applied to the surface surrounding the aperture (18). An elastic membrane (16) is bonded to the paint or tape (14), the bond of the membrane (16) being stronger than the adhesion of the paint or tape (14) to the surface (12). The aperture (18) is increasingly pressurized deforming the membrane (16) away from the surface (12) until the critical pressure is reached and the bond between the paint or tape (14) and the surface (12) fails. The strength of adhesion, expressed as the specific work of debonding, is calculated with a formula based upon the system design using only the critical pressure. |
