An efficient model for laminated composite thin-walled beams of open or closed cross-section and with or without in-filled materials

Azizul Islam; Abdul  Hamid Sheikh; Terry Bennett; Ole T Thomsen

doi:10.1016/j.compstruct.2020.112998

An efficient model for laminated composite thin-walled beams of open or closed cross-section and with or without in-filled materials

Azizul Islam, Abdul Hamid Sheikh^*, Terry Bennett, Ole T Thomsen

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

Abstract

The paper presents a new modeling technique for accurately predicting the complex behavior of thin-walled open and closed section beams made of fiber-reinforced laminated composite materials. The new modeling technique is significantly computational-efficient compared to detailed finite element modeling. In this technique, the complete 3D stress analysis problem consisting of all effects and their couplings is systematically decomposed into a 2D problem applicable to the beam section, and a 1D problem applicable along the beam length. The capability of the technique is not only suitable for thin-walled beams but also applicable for modeling beams with solid, thickwalled sections as well as thin/thick-walled composite beams with in-filled materials. To analyze beams with any arbitrary cross-sectional geometry, a 2D finite element (FE) model is used for solving the 2D sectional problem, while the 1D problem for the global load response of the beams is solved by a 1D FE model utilizing the sectional stiffness parameters obtained from the 2D model. The proposed technique is validated using experimental and numerical results, which show the excellent performance of the model. New results for a range of beam sections are developed using the presented method and validated against detailed FE modeling

Original language	English
Article number	112998
Number of pages	16
Journal	Composite Structures
Volume	256
Early online date	25 Sep 2020
DOIs	https://doi.org/10.1016/j.compstruct.2020.112998
Publication status	Published - 15 Jan 2021

Bibliographical note

Funding Information:
The authors would like to acknowledge that the research presented in this paper is supported by the Australian Government through the prestigious Research Training Program (RTP) Scholarship bestowed to the lead author of this paper.

Funding Information:
The authors would like to acknowledge that the research presented in this paper is supported by the Australian Government through the prestigious Research Training Program (RTP) Scholarship bestowed to the lead author of this paper. The author(s) declared no potential conflicts of interest with respect to the research, authorship and/or publication of this article. The author(s) received no financial support for the research, authorship and/or publication of this article.

Publisher Copyright:
© 2020 Elsevier Ltd

Keywords

Thin-walled composite beams
finite element analysis
foam-filled
warping

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title = "An efficient model for laminated composite thin-walled beams of open or closed cross-section and with or without in-filled materials",

abstract = "The paper presents a new modeling technique for accurately predicting the complex behavior of thin-walled open and closed section beams made of fiber-reinforced laminated composite materials. The new modeling technique is significantly computational-efficient compared to detailed finite element modeling. In this technique, the complete 3D stress analysis problem consisting of all effects and their couplings is systematically decomposed into a 2D problem applicable to the beam section, and a 1D problem applicable along the beam length. The capability of the technique is not only suitable for thin-walled beams but also applicable for modeling beams with solid, thickwalled sections as well as thin/thick-walled composite beams with in-filled materials. To analyze beams with any arbitrary cross-sectional geometry, a 2D finite element (FE) model is used for solving the 2D sectional problem, while the 1D problem for the global load response of the beams is solved by a 1D FE model utilizing the sectional stiffness parameters obtained from the 2D model. The proposed technique is validated using experimental and numerical results, which show the excellent performance of the model. New results for a range of beam sections are developed using the presented method and validated against detailed FE modeling",

keywords = "Thin-walled composite beams, finite element analysis, foam-filled, warping",

author = "Azizul Islam and {Hamid Sheikh}, Abdul and Terry Bennett and Thomsen, {Ole T}",

note = "Funding Information: The authors would like to acknowledge that the research presented in this paper is supported by the Australian Government through the prestigious Research Training Program (RTP) Scholarship bestowed to the lead author of this paper. Funding Information: The authors would like to acknowledge that the research presented in this paper is supported by the Australian Government through the prestigious Research Training Program (RTP) Scholarship bestowed to the lead author of this paper. The author(s) declared no potential conflicts of interest with respect to the research, authorship and/or publication of this article. The author(s) received no financial support for the research, authorship and/or publication of this article. Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

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AU - Islam, Azizul

AU - Hamid Sheikh, Abdul

AU - Bennett, Terry

AU - Thomsen, Ole T

N1 - Funding Information: The authors would like to acknowledge that the research presented in this paper is supported by the Australian Government through the prestigious Research Training Program (RTP) Scholarship bestowed to the lead author of this paper. Funding Information: The authors would like to acknowledge that the research presented in this paper is supported by the Australian Government through the prestigious Research Training Program (RTP) Scholarship bestowed to the lead author of this paper. The author(s) declared no potential conflicts of interest with respect to the research, authorship and/or publication of this article. The author(s) received no financial support for the research, authorship and/or publication of this article. Publisher Copyright: © 2020 Elsevier Ltd

PY - 2021/1/15

Y1 - 2021/1/15

N2 - The paper presents a new modeling technique for accurately predicting the complex behavior of thin-walled open and closed section beams made of fiber-reinforced laminated composite materials. The new modeling technique is significantly computational-efficient compared to detailed finite element modeling. In this technique, the complete 3D stress analysis problem consisting of all effects and their couplings is systematically decomposed into a 2D problem applicable to the beam section, and a 1D problem applicable along the beam length. The capability of the technique is not only suitable for thin-walled beams but also applicable for modeling beams with solid, thickwalled sections as well as thin/thick-walled composite beams with in-filled materials. To analyze beams with any arbitrary cross-sectional geometry, a 2D finite element (FE) model is used for solving the 2D sectional problem, while the 1D problem for the global load response of the beams is solved by a 1D FE model utilizing the sectional stiffness parameters obtained from the 2D model. The proposed technique is validated using experimental and numerical results, which show the excellent performance of the model. New results for a range of beam sections are developed using the presented method and validated against detailed FE modeling

AB - The paper presents a new modeling technique for accurately predicting the complex behavior of thin-walled open and closed section beams made of fiber-reinforced laminated composite materials. The new modeling technique is significantly computational-efficient compared to detailed finite element modeling. In this technique, the complete 3D stress analysis problem consisting of all effects and their couplings is systematically decomposed into a 2D problem applicable to the beam section, and a 1D problem applicable along the beam length. The capability of the technique is not only suitable for thin-walled beams but also applicable for modeling beams with solid, thickwalled sections as well as thin/thick-walled composite beams with in-filled materials. To analyze beams with any arbitrary cross-sectional geometry, a 2D finite element (FE) model is used for solving the 2D sectional problem, while the 1D problem for the global load response of the beams is solved by a 1D FE model utilizing the sectional stiffness parameters obtained from the 2D model. The proposed technique is validated using experimental and numerical results, which show the excellent performance of the model. New results for a range of beam sections are developed using the presented method and validated against detailed FE modeling

KW - Thin-walled composite beams

KW - finite element analysis

KW - foam-filled

KW - warping

U2 - 10.1016/j.compstruct.2020.112998

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M3 - Article (Academic Journal)

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JO - Composite Structures

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