Buckling analysis of multilayer FG-CNT reinforced nanocomposite cylinders assuming CNT waviness, agglomeration, and interphase effects using the CUF-EFG method

Rad, Mohammad Hossein Ghadiri; Hosseini, Seyed Mahmoud

doi:10.1080/15376494.2022.2030443

Cited by 7 publications

(1 citation statement)

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“…Shahmohammadi et al (2021) presented a new composite model with consideration CNT agglomeration to investigate the vibrations of thin-walled, layered composite panels. Using Carrera unified formulation, Ghadiri Rad and Hosseini (Ghadiri Rad and Hosseini, 2022) carried out the buckling behavior of cylinders reinforced with functionally graded (FG) CNTs.…”

Section: Introductionmentioning

confidence: 99%

A circular plate with a central hole reinforced with agglomerated CNTs under impact loading

Ranjbar-Roeintan

2023

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PurposeThis article focuses on the low-velocity impact (LVI) output of carbon nanotubes (CNTs)’ reinforcement circular plates, considering agglomeration size effect and clumping of CNTs’ inner side of the agglomerations.Design/methodology/approachA representative volume element (RVE) is used to determine the nanocomposite properties reinforced with agglomerated CNTs with random orientation. First-order shear deformation theory (FSDT) is used to obtain the motion equations of LVI analysis. These equations are handled by developing a Ritz method and Lagrangian mechanics. To extract the mass and stiffness matrices, terms with second and higher degrees are ignored.FindingsFormulation validation is performed by providing various examples, including comparisons with other research and ABAQUS FE code. The effects of agglomeration size, clumping of CNTs’ inner side of the agglomerations, CNT volume fraction and impact location on the responses of impact load, projectile displacement and plate deflection are analytically studied. These achievements illuminate how the influence of agglomeration size is very small on the impact response. Also, the influence of clumping of CNTs’ inner side of the agglomerations is significant, and as it increases, the displacement values and impact time increase, and the impact force decreases.Originality/valueIn this article, to avoid additional calculations, the parameters of the mass matrix and the stiffness coefficients are linearized to obtain the equations of motion of the impact on the circular plate.

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Section: Introductionmentioning

confidence: 99%