A single-variable approach for layered beams with imperfect interfaces

A single-variable approach for layered beams with imperfect interfaces

Ilaria Monetto, Roberta Massabò

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Abstract. The first-order shear deformable laminated beam problem is reformulated in terms of a fictitious bending displacement as primal variable. A fourth-order differential equation governs the problem with two additional unknown constants coming from the integration of the longitudinal displacement. With the classical six boundary conditions, the problem is complete and well posed. An isogeometric collocation scheme is developed to solve the problem numerically. The formulation is completely locking-free and satisfies high continuity requirements for the approximation functions. The results for an exemplary structure confirm the validity and the good performance of the method, which is preliminary to the single variable reformulation of a more accurate zig-zag model for laminates with perfect and imperfect interfaces.

Single-Variable Formulation, Multi-Layered Beams, Zigzag Theories

Published online 3/17/2022, 6 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Ilaria Monetto, Roberta Massabò, A single-variable approach for layered beams with imperfect interfaces, Materials Research Proceedings, Vol. 26, pp 505-510, 2023

DOI: https://doi.org/10.21741/9781644902431-82

The article was published as article 82 of the book Theoretical and Applied Mechanics

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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