A
sandwich panel system with a polystyrene foam core employed as an external wall
cladding of a commercial and
institutional building was analyzed for local face
sheet
instabilities. As can be seen from the diagrams in Figs. 1, 2, 4, 5 and
6, the wrinkling occurred in the connection areas and round window and door
openings. The combined effect of wind action, temperature changes, torsional
stress and pressure exerted by panel connectors was investigated for a system
with openings. It was concluded that local face sheet instabilities and
decumulation of effort can be avoided by proper design and construction.