Numerical Simulations of Destructive Tests of Cast Iron Columns Strengthened with a CFRP Coating

In many cases, there is a need to reinforce the existing, sometimes very old, cast iron columns. The paper describes a proposed and completed reinforcement procedure using an external, thin coating (sleeve or jacket) made of composite (carbon fiber reinforced polymer—CFRP). The strengthening effect...

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Autores principales: Marcinowski, Jakub, Różycki, Zbigniew, Sakharov, Volodymyr
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7602956/
https://www.ncbi.nlm.nih.gov/pubmed/33081257
http://dx.doi.org/10.3390/ma13204608
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author Marcinowski, Jakub
Różycki, Zbigniew
Sakharov, Volodymyr
author_facet Marcinowski, Jakub
Różycki, Zbigniew
Sakharov, Volodymyr
author_sort Marcinowski, Jakub
collection PubMed
description In many cases, there is a need to reinforce the existing, sometimes very old, cast iron columns. The paper describes a proposed and completed reinforcement procedure using an external, thin coating (sleeve or jacket) made of composite (carbon fiber reinforced polymer—CFRP). The strengthening effect was verified in destructive tests performed on two original columns (without reinforcement) and two other, identical columns strengthened by means of the proposed technique. Due to the expected very high load capacity of the axially loaded column, the test rig was designed to allow the application of the force on a big eccentricity. For this purpose a special base was designed and fabricated. Destructive tests have confirmed the high effectiveness of the adopted strengthening technique. The main objective of the present paper is a numerical confirmation of experimental results. All material parameters required in the numerical model were determined in laboratory tests. Simulation was performed using the finite element method—based on two systems, COSMOS/M and Simulia Abaqus. Numerical models were validated on results of the analytical assessment of stresses presented in the paper as well. Results of numerical simulations made on nonlinear models were compared with the experimental results. Destruction mechanisms observed in the experiments were confirmed in performed numerical simulations.
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spelling pubmed-76029562020-11-01 Numerical Simulations of Destructive Tests of Cast Iron Columns Strengthened with a CFRP Coating Marcinowski, Jakub Różycki, Zbigniew Sakharov, Volodymyr Materials (Basel) Article In many cases, there is a need to reinforce the existing, sometimes very old, cast iron columns. The paper describes a proposed and completed reinforcement procedure using an external, thin coating (sleeve or jacket) made of composite (carbon fiber reinforced polymer—CFRP). The strengthening effect was verified in destructive tests performed on two original columns (without reinforcement) and two other, identical columns strengthened by means of the proposed technique. Due to the expected very high load capacity of the axially loaded column, the test rig was designed to allow the application of the force on a big eccentricity. For this purpose a special base was designed and fabricated. Destructive tests have confirmed the high effectiveness of the adopted strengthening technique. The main objective of the present paper is a numerical confirmation of experimental results. All material parameters required in the numerical model were determined in laboratory tests. Simulation was performed using the finite element method—based on two systems, COSMOS/M and Simulia Abaqus. Numerical models were validated on results of the analytical assessment of stresses presented in the paper as well. Results of numerical simulations made on nonlinear models were compared with the experimental results. Destruction mechanisms observed in the experiments were confirmed in performed numerical simulations. MDPI 2020-10-16 /pmc/articles/PMC7602956/ /pubmed/33081257 http://dx.doi.org/10.3390/ma13204608 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Marcinowski, Jakub
Różycki, Zbigniew
Sakharov, Volodymyr
Numerical Simulations of Destructive Tests of Cast Iron Columns Strengthened with a CFRP Coating
title Numerical Simulations of Destructive Tests of Cast Iron Columns Strengthened with a CFRP Coating
title_full Numerical Simulations of Destructive Tests of Cast Iron Columns Strengthened with a CFRP Coating
title_fullStr Numerical Simulations of Destructive Tests of Cast Iron Columns Strengthened with a CFRP Coating
title_full_unstemmed Numerical Simulations of Destructive Tests of Cast Iron Columns Strengthened with a CFRP Coating
title_short Numerical Simulations of Destructive Tests of Cast Iron Columns Strengthened with a CFRP Coating
title_sort numerical simulations of destructive tests of cast iron columns strengthened with a cfrp coating
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7602956/
https://www.ncbi.nlm.nih.gov/pubmed/33081257
http://dx.doi.org/10.3390/ma13204608
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