In-plane mechanical properties of embedded co-cured perforated fiber reinforced damping composites

doi:10.19936/j.cnki.2096-8000.20240128.003

Abstract

Abstract: An embedded co-curing perforated fiber-reinforced damping composite panel (ECPFDCP) structure was proposed. The structure does not only reduce the stiffness loss and improve the bearing capacity, but also improves the damping performance. The finite element model and the theoretical model of the in-plane equivalent parameters of the perforated fiber reinforced damping film are established, and the effectiveness of the theoretical model and method are verified by numerical simulation. The effects of design parameters on the in-plane mechanical properties of perforated fiber reinforced damping films of ECPFDCP were investigated by verified theoretical models and methods. The results show that increasing the thickness of the damping layer and the aperture of the damping layer and decreasing the distance of the damping layer are beneficial to increase the shear modulus. The model and method presented in this paper have important guiding significance for the theoretical study of dynamic properties of embedded co-cured discontinuous damping composite structures and provide a reference for the design and manufacture of structures.

Key words: composite material, theoretical models, numerical simulation, in-plane mechanical properties, perforated damping

CLC Number:

TB332

SUN Ruijun, LIANG Sen, LUO Hao, LIU Zhaoyang, HU Zijian. In-plane mechanical properties of embedded co-cured perforated fiber reinforced damping composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2024, 0(1): 22-29.

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