Laminated optimization of non-uniform I-shaped beams under transversely loading with clamped-free boundary conditions

Soltani, Majid; Abolghasemian, R.; Ghasemi, Ahmad Reza; Shafieirad, Mohsen; Abbasi, Zohreh; Amiri-Mehra, A.H.

doi:10.1016/j.istruc.2022.11.138

Structures

2023

DOI: 10.1016/j.istruc.2022.11.138

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Laminated optimization of non-uniform I-shaped beams under transversely loading with clamped-free boundary conditions

Majid Soltani

R. Abolghasemian

Ahmad Reza Ghasemi

et al.

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Cited by 3 publications

References 23 publications

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A stiffness prediction method for variable cross‐section CFRP laminated beam

Yang,

Liu,

Zheng

et al. 2024

Polymer Composites

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To efficiently design the stiffness of the laminated composite blade‐like structure, an analytical method to assess deformation of variable cross‐section laminated beam under cantilever bending load was developed, in which a local ply density matrix method was introduced to characterize the ply‐up in arbitrary cross‐section after ply drop‐off process and infinitesimal element segment method was used to convert complex variable cross‐section specimen into local equal cross‐section beam structure. The model was validated by the cantilever beam experiment with relative predicted error of stiffness of 5.7%. Inner and outer ply drop‐off models were analyzed using the proposed analytical method. The results show that: (1) stiffness of the outer ply drop‐off model is the highest, at 13.07 N/mm, while that of the inner ply drop‐off model 2 is the lowest, about 17.8% lower than the outer ply drop‐off model; (2) maximum relative deformation difference between the inner ply drop‐off model 2 and outer ply drop‐off model is 21.7% at the free side of the cantilever beam. It indicates that anti‐deformation ability of the variable cross‐section laminated structure can be efficiently designed by the proposed analytical method, especially for the section close to the free side.Highlights Developed a bending stiffness prediction method for composite beam. Variable cross‐section feature of the composite laminate was considered. Local ply density matrix method was introduced to characterize ply drop‐off. Proposed method was validated by cantilever beam bending experiment. Inner and outer ply drop‐off models were compared by the proposed method.

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A stiffness prediction method for variable cross‐section CFRP laminated beam

Yang,

Liu,

Zheng

et al. 2024

Polymer Composites

View full text Add to dashboard Cite

show abstract

Evaluation of the Influence of Axial Loading on the Lateral Buckling Resistance of Tapered Laminated Composite I-Section Beam-Columns

Abolghasemian

Soltani

Ghasemi

2023

Iran J Sci Technol Trans Mech Eng

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Stability analysis of nanoscale non-uniform sandwich I-section beams with AFG core and two metal face-sheets under flexural loadings

Soltani,

Civalek

2023

Waves in Random and Complex Media

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Laminated optimization of non-uniform I-shaped beams under transversely loading with clamped-free boundary conditions

Cited by 3 publications

References 23 publications

A stiffness prediction method for variable cross‐section CFRP laminated beam

A stiffness prediction method for variable cross‐section CFRP laminated beam

Evaluation of the Influence of Axial Loading on the Lateral Buckling Resistance of Tapered Laminated Composite I-Section Beam-Columns

Stability analysis of nanoscale non-uniform sandwich I-section beams with AFG core and two metal face-sheets under flexural loadings

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