A review on material selection, design method and performance investigation of composite leaf springs

摘要

Composite leaf spring has gained considerable attention due to its high specific strength/modulus and corrosion resistance. Its design method and performance investigation are the research hotspots in the application field of composite structures. This paper presents an overview of research results on the material selection, the design method of the joint and the spring body of composite leaf springs, including stiffness calculation method and optimization method. This article also gives an overview of performance investigation results reported in the literature for the modal, damping, dynamic stiffness, response to low frequency impact, creep behavior, fatigue performance and loading performance of composite leaf springs. Finally, the emerging trends in the research of composite leaf springs are summarized.