Static Analysis of Anisotropic Doubly-Curved Shell Subjected to Concentrated Loads Employing Higher Order Layer-Wise Theories
نویسندگان
چکیده
In the present manuscript, a Layer-Wise (LW) generalized model is proposed for linear static analysis of doublycurved shells constrained with general boundary conditions under influence concentrated and surface loads. The unknown field variable modelled employing polynomials various orders, each them defined within layer structure. As particular case LW model, an Equivalent Single Layer (ESL) formulation derived too. Different approaches are outlined assessment external forces, as well non-conventional constraints. doubly-curved shell composed by superimposed generally anisotropic laminae, characterized arbitrary orientation. fundamental governing equations starting from orthogonal set principal coordinates. Furthermore, blending functions account distortion physical domain. implementation performed means Generalized Differential Quadrature (GDQ) method, whereas numerical integrations computed Integral (GIQ) method. post-processing phase, effective procedure adopted reconstruction stress strain through-the-thickness distributions based on exact fulfillment three-dimensional equilibrium equations. A series systematic investigations in which response structures curvatures lamination schemes, calculated methodology, have been successfully compared to those ones obtained refined finite element simulations. Even though approach accounts two-dimensional structural problem, it capable predicting different characteristics, taking into reduced computational cost pretending be valid alternative widespread implementations.
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ژورنال
عنوان ژورنال: Cmes-computer Modeling in Engineering & Sciences
سال: 2023
ISSN: ['1526-1492', '1526-1506']
DOI: https://doi.org/10.32604/cmes.2022.022237