STUDY ON DYNAMIC INDUCED SNAP-THROUGH OF BISTABLE COMPOSITE LAMINATES UNDER MULTIPARAMETER ACTION

摘要

In this article, dynamic behaviors of a carbon fiber reinforced composite bi-stable laminate are studied. The ABAQUS/CAE is used to simulate the dynamic response of the bi-stable laminate under harmonic foundation excitation at the center. Subspace iteration method is considered to analyze the mode of dynamic snap-through. Base on the implicit direct integration method, time domain response and frequency domain response of the system are achieved. Considering the dissipative effect of Ray-leigh damping, the potential energy curve is used to describe the variety of strain energy during the process of snap-through. The factors affecting the dynamic snap-through performance of the bi-stable laminate, including the curing temperature, structure sizes, layup conditions and dissipation factors, are discussed analytical solutions. Under the influence of multi-parameters, a series of single-well vibrations and cross-well vibrations is fully displayed.