Development of test methods for determining the skin-to-core bond strength of thick-skinned sandwich constructions
Technical Paper
1999-04-0020
Sector:
Language:
English
Abstract
The climbing drum peel test method is severely limited when
testing the skin-to-core bond strength of thick-skinned sandwich
constructions typically used in the marine industry. High skin
stiffnesses will create the same difficulties. Alternative test
configurations have been proposed for determining the skin-to- core
bond strength of these types of materials. A variety of core/skin
combinations and geometries have been selected and are being
assessed in order to ascertain the robustness and applicability of
proposed test methods to UK industry. In addition, a number of
analytical techniques, including boundary and finite element
methods, are being employed to theoretically model the proposed
methods. The National Physical Laboratory (NPL) and the University
of Liverpool, have collaborated in these developments.
As a by-product of the work on thick-skinned constructions,
developments have also been made to alternative methods for thin-
skinned constructions and improvements proposed for the climbing
drum test.