Optimum Design of Fibre Orientation in Composite Laminate Plates for Out-Plane Stresses

Table 2

Optimum lamina orientations for material T300/5308 under different loads for constant thickness.

Loading: 𝑁𝑥𝑥,𝑁𝑦𝑦,𝑁𝑥𝑦	Optimum lamina orientations		Safety factor
(KPa m) (Figure 2)	Akbulut and Sonmez [35]	Present work	Akbulut and Sonmez [35]	Present work
200/200/0	50.804/−49.804/26.594/−49.734	50.804/−49.804/26.594/−49.734	2.14	2.14
200/0/200	31.7216	32.404/−56.614/−7.814/33.874	4.84	4.59
400/200/0	30.984/−36.574/37.674/−37.204	−20.124/58.014/−49.904/20.114	1.64	1.42
200/200/200	4516	4516	1.11×10^16	1.11×10^16