Influence of Fiber Angle on the Steady State Periodic Response of Annular Sectorial Plates

Abstract Structural elements in the form of annular sectorial plates are widely used aeronautical, biomedical, and marine engineering. When these components exposed to dynamic load, large-amplitude vibrations occur. The vibration response analysis based on linear strain-displacement relation typically yields a conservative estimate can be as first approximation actual solution for thin structural elements. As result, geometric nonlinearity must incorporated efficient fail-proof design such This paper shows non-linear steady-state forced responses plates. governing equations motion have been solved time domain by using modified shooting method an arc-length/pseudo-arc length continuation technique at bifurcation point obtain complete curve comprised stable unstable branches. work investigates effect fibre angle strain/stress fluctuation throughout thickness laminated plate is determined explain why hardening has increased. cyclic normal stress during period centre top bottom surface also provided forcing frequency ratio peak amplitude response. Due change restoring forces, spectra reveal much increased harmonic involvement along with fundamental all angles.