A simplified-but-general nonlinear thin-walled beam finite element model with independent interpolated axial displacement

Li, Wenxiong; Gao, Wei; Xie, Peng; Chen, Suiyin

doi:10.1016/j.tws.2019.106467

Cited by 1 publication

(1 citation statement)

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“…In that spirit, Trinh et al 7 propose a novel strain‐displacement variational formulation based on the modified couple stress theory for analyzing the flexible behavior of laminated composite beams that accurately predicts three‐dimensional stresses. Li et al 8 propose a study of thin‐walled beams where shear deformation and higher order axial displacements are accounted by including axial displacement in the cross section using independent Lagrange interpolation polynomials.…”

Section: Introductionmentioning

confidence: 99%

A geometrically nonlinear structural formulation for analysis of beams with a new set of generalized displacements considering piezoelectric effects

Silva

Donadon

Cabral

2021

Numerical Meth Engineering

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In this article, a nonlinear structural formulation that uses a new dimensionless set of generalized displacements is proposed for solving geometrically nonlinear beam problems, being validated by several applications given in literature where a cantilever beam is likely to undergo large displacements. By this approach, useful simplifications and insights are achievable in the analysis process, as the system matrices becoming linear and the reduction of required interpolation continuity degree. The formulation is firstly developed-in a Lagrangian perspective-and the equilibrium equations are then derived using Hamilton's principle. In the sequence, using finite element method, it is substantiated by comparison to examples given in literature in static, dynamic, and finally in an application where piezoelectric effects intervene, in order to assess its multiframework capabilities and deliver a convenient approach whereby beams constituted of smart or conventional materials can be efficiently studied.

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Section: Introductionmentioning

confidence: 99%