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New Enriched Beam Element for Static Bending Analysis of Functionally Graded Porous Beams Resting on Elastic Foundations

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Abstract

This paper presents a novel approach for analyzing functionally graded beams with porosity on elastic foundations. A new first-order shear mixed beam element is proposed, incorporating enriched transverse shear stiffness and parabolic stress distributions. The element avoids shear locking and demonstrates high convergence and accuracy. Compared to existing models, the proposed beam element convergence with only one to two elements, so it provides a reliable numerical tool for analyzing both homogeneous and functionally graded beams. The study investigates the influence of elastic foundations and porosity, offering benchmark solutions for future research. The proposed element finds applications in civil, mechanical, and aerospace engineering, enabling efficient analysis and optimization of structural systems under complex loading. It also holds potential for vibration and buckling analysis, enhancing structural design and stability.

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ACKNOWLEDGMENTS

The authors extend their appreciation to the Deputyship for Research & Innovation, Ministry of Education in Saudi Arabia for funding this research work through the project number ISP23-69.

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Correspondence to M. H. Ghazwani.

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Ghazwani, M.H. New Enriched Beam Element for Static Bending Analysis of Functionally Graded Porous Beams Resting on Elastic Foundations. Mech. Solids 58, 1878–1893 (2023). https://doi.org/10.3103/S0025654423600885

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