A new higher order shear and normal deformation theory for the free vibration analysis of sandwich curved beams

Sayyad, Atteshamuddin S.; Avhad, Pravin V.

doi:10.1016/j.compstruct.2021.114948

Cited by 18 publications

(2 citation statements)

References 29 publications

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“…15,16 Li et al 17 designed a curved sandwich beam and investigated its nonlinear dynamics. Atteshamuddin et al 18 analyzed the Haiying Cao and Wenyi Bao equally contributed to the article. free vibration of curved sandwich beams by using a fifth-order curved beam theory accounting for the effects of transverse shear and normal strains.…”

Section: Introductionmentioning

confidence: 99%

“…Li et al 17 designed a curved sandwich beam and investigated its nonlinear dynamics. Atteshamuddin et al 18 analyzed the free vibration of curved sandwich beams by using a fifth‐order curved beam theory accounting for the effects of transverse shear and normal strains. Zhang and Zhou 19 designed curved sandwich panels as cowling component of a helicopter and conducted bird‐strike simulation experiments on them.…”

Section: Introductionmentioning

confidence: 99%

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Manufacturing and mechanical testing of curved sandwich beams with zero‐Poisson's ratio honeycomb cores

Cao,

Bao,

Bai

et al. 2023

Polymer Composites

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In this research, free curling property of the over‐expanded honeycomb (OH) with zero Poisson's ratio was utilized to design and manufacture curved carbon fiber‐reinforced composite (CFRC) sandwich beams by hot compression molding technique and co‐curing process. Three‐point bending experiments were conducted to reveal the failure mechanism of these OH‐based curved sandwich beams with various curvatures. The results reveal that in this research no matter what the curvature is, the shearing fracture of the OH core controls the initial failure of the curved structure, which is followed by upper skin fracture, lower skin delamination and fracture. With the increase of curvature, the ultimate bearing capacity and flexural rigidity of the curved beams will increase. No debonding was observed in the experiments.Highlights Curved sandwich beams with zero‐Poisson's ratio honeycomb‐core was designed. Deformation process from arc, flattening to anti‐arc was revealed by testing. Strength of curved sandwich beams depends on shear strength of the honeycomb. Beams with smaller curvature have greater bearing capacity and stiffness.

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