An Adaptive Fiber Section Discretization Scheme for Nonlinear Frame Analysis
Publication: Journal of Structural Engineering
Volume 148, Issue 12
Abstract
The paper proposes an adaptive fiber section discretization scheme for inelastic frame elements. The scheme uses cubature rules for the efficient and accurate evaluation of the section response over the elastic portion of the section. As inelastic strains arise and penetrate into the section from the edges, the scheme converts the area under inelastic strains to a regular fiber discretization. This approach offers considerable advantages for the computational efficiency of large structural models with inelastic frame elements by minimizing the number of integration points in sections with limited inelastic response. The proposed scheme is presented for circular and rectangular cross sections, but the approach is applicable to other section shapes. Inelastic frame response examples demonstrate the benefits of the proposed discretization scheme for the nonlinear response history analysis of large structural models.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The first author thanks the Ministry of Science of the Republic of Serbia for financial support under the Project No. 2000092.
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Published In
Journal of Structural Engineering
Volume 148 • Issue 12 • December 2022
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Jul 18, 2021
Accepted: Aug 12, 2022
Published online: Oct 12, 2022
Published in print: Dec 1, 2022
Discussion open until: Mar 12, 2023
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Cited by
- Svetlana M. Kostic, Filip C. Filippou, An Adaptive Section Discretization Scheme for the Nonlinear Dynamic Analysis of Steel Frames, Journal of Structural Engineering, 10.1061/JSENDH.STENG-11779, 149, 4, (2023).