Unified refined beam theory applied to the Spectral Finite Element Method for analysis of laminated composites.

سال انتشار: 1400
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 128

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شناسه ملی سند علمی:

JR_JCAM-52-1_004

تاریخ نمایه سازی: 21 اردیبهشت 1400

چکیده مقاله:

Due to the limitation that the classical beam theories have in representing transversal shear stress fields, new theories, called high order, have been emerging. In this work, the principal high order theories are unified in single kinematics and applied to the Equivalent Single Layer Theory. The governing equations and the boundary conditions for laminated beams are consistent variational obtained. From the equilibrium equations, the high order spectral finite element model was developed using the polynomial functions of Hermite and Lagrange, with interpolants in the zeros of Lobatto's polynomials. Finally, to demonstrate the finite element model's outstanding efficiency, numerical results (static and dynamic) are shown and compared with the elasticity theory solution

کلیدواژه ها:

laminated beams ، ESL theory ، Spectral Finite Element Method

نویسندگان

Hilton Souza Santana

Department of Civil Engineering, Federal University of Sergipe, São Cristovão, Brazil

Luis R. Almeida

Federal University of Alagoas, Laboratory of Scientific Computing and Visualization Technology Center, Campus A. C. Simões, Maceió-AL, ۵۷۰۹۲-۹۷۰, Brazil

Fabio Da Rocha

Department of Civil Engineering, Federal University of Sergipe, São Cristovão, Brazil

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