THE RADIAL POINT INTERPOLATION METHOD IN THE BENDING ANALYSIS OF SYMMETRIC LAMINATES USING HSDTS

سال انتشار: 1400
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 122

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شناسه ملی سند علمی:

JR_JCAM-52-4_007

تاریخ نمایه سازی: 26 دی 1400

چکیده مقاله:

The bending analysis of composite structures is usually performed using the Finite Element Method (FEM), which is also used in many fields of engineering. However, other efficient, accurate, and robust numerical methods can be alternatives to FEM’s widespread use. This work focus on a meshless discretization technique - the Radial Point Interpolation Method (RPIM) – which only requires an unstructured nodal distribution to discretize the problem domain. The numerical integration of the Galerkin weak form governing the plate’s bending problem is performed using a background integration mesh. The nodal connectivity is enforced using the ‘influence-domain’ concept which is based on a radial search of nodes closer to an integration point. Thus, in this work, the RPIM is used to analyse the bending behaviour of symmetric cross-ply composite laminated plates using equivalent single layer (ESL) formulations, following different transverse high-order shear deformation theories (HSDTs). Varying the plate’s geometry and stacking sequences, the applied loads, or the plate model, several composite laminated plates are analysed. In the end, the meshless solutions are compared with analytical solutions available in the literature. The accuracy of the meshless approach is proved and several new numerical solutions for the bending of symmetric laminates are proposed.

کلیدواژه ها:

Symmetric Laminated Plates ، High-Order Shear Deformation Theories ، Meshless method ، Radial Point Interpolation Method (RPIM)

نویسندگان

Daniel Rodrigues

INEGI – Institute of Science and Innovation in Mechanical and Industrial Engineering

Jorge Belinha

School of Engineering, Polytechnic of Porto (ISEP)

Renato Natal Jorge

Faculty of Engineering, University of Porto (FEUP), Department of Mechanical Engineering

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