INVESTIGATION OF PARAMETERS DICTATING DAMAGE AND ENERGY ABSORPTION CHARACTERISTICS IN SANDWICH PANELS

摘要

Bending behaviour of composite-skinned sandwich panels with both aluminium and nomex honeycombs have been investigated under a quasi-static loading with both HS and FE indenters. Damage mechanisms were identified as core crush, top-skin delamination and skin failure. A combination of skin thickness and indenter nose shape dictates not only the nature of these damage mechanisms but also their energy-absorbing capacity.