Simplified numerical analyses of stiffened panels
Abstract
Stiffened panels are basic constituents of wide scope of structures and thus one of the most important study
topics in the field of strength analysis. Although they are successfully dealt using FEM these days, related models
are complex and time consuming. In this paper, a simplified strength calculation procedure is proposed. FEM
models are reduced to unstiffened thin plates only, while influence of stiffeners is directly incorporated in plates`
stiffness matrixes. Elastic parameters of unstiffened panels are obtained for the case of both membrane and
bending response of the structure, and derived from the assumption that maximum displacement and Von Mises
stress are equal in stiffened and unstiffened panels. Orthotropic plate theory is widely used for modeling the
bending behavior of unstiffened panels. Proposed method is thoroughly explained and tested in few examples by
comparison with results obtained for conventional models of same structures.
Keywords:
unstiffened panel / equivalent panel / stiffened panel / orthotropic plate / plate finite elementSource:
11th HSTAM International Congress on Mechanics Athens, Greece, 27 – 30 May, 2016, 2016Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200105 (University of Belgrade, Faculty of Mechanical Engineering) (RS-MESTD-inst-2020-200105)
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Institution/Community
Mašinski fakultetTY - CONF AU - Momčilović, Nikola AU - Motok, Milorad AU - Maneski, Taško PY - 2016 UR - https://machinery.mas.bg.ac.rs/handle/123456789/4246 AB - Stiffened panels are basic constituents of wide scope of structures and thus one of the most important study topics in the field of strength analysis. Although they are successfully dealt using FEM these days, related models are complex and time consuming. In this paper, a simplified strength calculation procedure is proposed. FEM models are reduced to unstiffened thin plates only, while influence of stiffeners is directly incorporated in plates` stiffness matrixes. Elastic parameters of unstiffened panels are obtained for the case of both membrane and bending response of the structure, and derived from the assumption that maximum displacement and Von Mises stress are equal in stiffened and unstiffened panels. Orthotropic plate theory is widely used for modeling the bending behavior of unstiffened panels. Proposed method is thoroughly explained and tested in few examples by comparison with results obtained for conventional models of same structures. C3 - 11th HSTAM International Congress on Mechanics Athens, Greece, 27 – 30 May, 2016 T1 - Simplified numerical analyses of stiffened panels UR - https://hdl.handle.net/21.15107/rcub_machinery_4246 ER -
@conference{ author = "Momčilović, Nikola and Motok, Milorad and Maneski, Taško", year = "2016", abstract = "Stiffened panels are basic constituents of wide scope of structures and thus one of the most important study topics in the field of strength analysis. Although they are successfully dealt using FEM these days, related models are complex and time consuming. In this paper, a simplified strength calculation procedure is proposed. FEM models are reduced to unstiffened thin plates only, while influence of stiffeners is directly incorporated in plates` stiffness matrixes. Elastic parameters of unstiffened panels are obtained for the case of both membrane and bending response of the structure, and derived from the assumption that maximum displacement and Von Mises stress are equal in stiffened and unstiffened panels. Orthotropic plate theory is widely used for modeling the bending behavior of unstiffened panels. Proposed method is thoroughly explained and tested in few examples by comparison with results obtained for conventional models of same structures.", journal = "11th HSTAM International Congress on Mechanics Athens, Greece, 27 – 30 May, 2016", title = "Simplified numerical analyses of stiffened panels", url = "https://hdl.handle.net/21.15107/rcub_machinery_4246" }
Momčilović, N., Motok, M.,& Maneski, T.. (2016). Simplified numerical analyses of stiffened panels. in 11th HSTAM International Congress on Mechanics Athens, Greece, 27 – 30 May, 2016. https://hdl.handle.net/21.15107/rcub_machinery_4246
Momčilović N, Motok M, Maneski T. Simplified numerical analyses of stiffened panels. in 11th HSTAM International Congress on Mechanics Athens, Greece, 27 – 30 May, 2016. 2016;. https://hdl.handle.net/21.15107/rcub_machinery_4246 .
Momčilović, Nikola, Motok, Milorad, Maneski, Taško, "Simplified numerical analyses of stiffened panels" in 11th HSTAM International Congress on Mechanics Athens, Greece, 27 – 30 May, 2016 (2016), https://hdl.handle.net/21.15107/rcub_machinery_4246 .