Five-variable higher-order model for accurate analysis and design of laminated plates

Zhen, Wu; Jie, Mei; Shengbo, Ling; Xiaohui, Ren

doi:10.1007/s00707-024-03875-5

Acta Mech

2024

DOI: 10.1007/s00707-024-03875-5

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Five-variable higher-order model for accurate analysis and design of laminated plates

Wu Zhen,

Mei Jie,

Ling Shengbo

et al.

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Cited by 1 publication

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Geometrically nonlinear static analysis of multi-component structures through variable-kinematics finite elements

Azzara,

Carrera,

Chiaia

et al. 2024

Acta Mech

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This paper presents a multi-dimensional variable-kinematics finite element model for nonlinear static analyses of structures with complex geometries. The approach incorporates higher-order beam models and classical solid finite elements in a unified framework, enabling refined modeling of complex geometries. The finite element procedure proposed follows the Carrera Unified Formulation (CUF) and uses a pure displacement-based methodology. The governing equations are derived within the classical continuum mechanics framework, and weak-form equilibrium equations are established using the Principle of Virtual Displacements (PVD). Within the CUF framework, higher-order beam and hexahedral solid models are defined in a unified manner, and the governing equations are written in terms of invariants of mathematical models used and the theory of structures approximation. A coupling technique is used between the beam and solid elements at the nodal level using superposition. The capabilities of fully nonlinear variable-kinematics models are investigated for the static analysis of various rectangular and curved structures. The numerical results are compared with solutions obtained using commercial software. Finally, the proposed methodology is applied to analyze more complex geometries in engineering applications. The results show the capabilities of variable-kinematics models in terms of both accuracy and computational efficiency for the computation of highly nonlinear deformed states and localized phenomena, such as stress concentrations and buckling.

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Geometrically nonlinear static analysis of multi-component structures through variable-kinematics finite elements

Azzara,

Carrera,

Chiaia

et al. 2024

Acta Mech

View full text Add to dashboard Cite

show abstract

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Five-variable higher-order model for accurate analysis and design of laminated plates

Cited by 1 publication

References 56 publications

Geometrically nonlinear static analysis of multi-component structures through variable-kinematics finite elements

Geometrically nonlinear static analysis of multi-component structures through variable-kinematics finite elements

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