Behaviour and Optimization Aids of Composite Stiffened Hypar Shell Roofs with Cutout under Free Vibration
Figure 5
Values of non-dimensional fundamental frequency () of 0/90/0/90 stiffened hypar shell with cutout for different sizes of central cutout and boundary conditions; , , , ; , , , , , . Each stiffener has a single lamina with fibres along its length.