Estimation of shear correction factors for laminated composite plates using variational asymptotic method
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Anup Kumar Pathak [1] ; Srikant Shekhar Padhee [2]
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[1] Indian Institute of Technology Gandhinagar, Ahmedabad, India
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[2] Indian Institute of Technology Ropar, Rupnagar, India
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- Localización: Mechanics based design of structures and machines, ISSN 1539-7734, Vol. 53, Nº. 8, 2025, págs. 6048-6062
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
This work presents a novel method for efficiently and accurately computing shear correction factors (SCFs) in laminated composite plates. The present approach utilizes the variational asymptotic method (VAM) to derive a reduced-order plate model, providing analytical expressions for transverse shear strains in terms of 2D variables (functions of in-plane coordinates only). By matching the transverse shear forces and strain energies from VAM to those from the classical first-order shear deformation theory (FSDT) with SCFs, we extract the SCFs without cumbersome numerical evaluations. This method offers several advantages over traditional techniques: it is asymptotically accurate, computationally efficient, and provides insights into the influence of individual lamina thickness and lay-up sequence on SCFs. The presented approach can be extended to analyze the impact of other parameters such as boundary conditions and loading opening a scope for future investigations.
