Investigation on nonlinear bending behavior of sandwich shell panel with cutout using HSDT and FE approach

• Autores: Ravi Kumar, Chetan Kumar Hirwani
• Localización: Mechanics based design of structures and machines, ISSN 1539-7734, Vol. 52, Nº. 3, 2024, págs. 1686-1704
• Idioma: inglés
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• Resumen

  • The nonlinear deflection response of the sandwich shell panel with cutout is analyzed, numerically in the present article. The numerical model of the said curved panel is derived using higher-order shear deformation theory and finite element approximations. The geometrical nonlinearity is being considered via Green-Lagrange’s strain-displacement relation. The governing equation of the nonlinear bending analysis is derived using the energy approach and variational principle. Model accuracy is analyzed as a first step by matching current model responses with previously available data. Further, the model’s capability is explored by solving various new numerical examples and discussed in detail.