Probability analysis of bistable composite laminates using the subset simulation method

Bistable composite laminates are advanced structures which potential candidates for morphing structure applications. The geometrical dimensions, material properties, ambient temperature and moisture have significant effects on the bistable behaviour, effect of uncertain parameters should be quantified. Reliability analysis is well established quantitative assessment probability an event due to parameter uncertainty. Thus, subset simulation applied reliability sensitivity plates with multiple random parameters. bistability estimated using principle minimum energy; Rayleigh-Ritz method used develop equations motion limit state function. results indicate that stacking sequence has a large probability, cross-ply most likely bistable. Moreover, absorption by laminate can dramatically reduce this probability. demonstrates subject humidity, coefficient thermal expansions greatest influence However, without thickness important factor. accuracy efficiency validated Monte Carlo simulation.