Sandwich panels with stiffeners

This paper is the third in range presented at WCTE conferences. During the WCTE 2012 in Auckland the paper "sandwich structures with wood-based faces" [1] dealt with the behaviour of traditional sandwich panels. During the WCTE 2014 in Quebec, the paper focussed on these panels with openings for e.g. skylights [2]. In this third paper the modelling of a sandwich panel with stiffeners is analysed. This particular type of sandwich panel promises a considerably higher load bearing capacity, along with other advantages such as less brittle properties, socalled strong points in the structure itself, which allow for connections, and of course the lack of cold bridging as known from other stressed skin and stiffened panels. The paper presented here can be seen as a report on the research efforts carried out at Eindhoven University of Technology (TU/e), in cooperation with Industry, to provide scientific and experimental background to a building component which is widely used for mainly roof structures. For this, sandwich panels with stiffeners, applied as infill panels and roof panels are analysed analytically, numerically and experimentally.