| Title: | Nonlinear semi-numeric and finite element analysis of three-point bending tests of notched polymer fiber-reinforced concrete prisms |
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| Authors: | ID Unuk, Žiga (Author)
ID Kuhta, Milan (Author) |
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| Files: |  applsci-14-01604.pdf (6,91 MB)
MD5: 74F359DA4C5713CB3BCBFF3800C422AD
 https://www.mdpi.com/2076-3417/14/4/1604
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| Language: | English |
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| Work type: | Scientific work |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
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| Abstract: | A nonlinear semi-numeric and finite element analysis of three-point bending tests of notched polymer fiber-reinforced concrete prisms was performed. The computational and experimental results were compared in terms of the load-displacement behavior. The vertical midspan displacement and the crack mouth opening displacement results were considered. The nonlinear semi-numeric computational procedure involved the moment-curvature relation, calculated by considering the constitutive material law from the fib Model Code for Concrete Structures 2010, and considered a plastic hinge mechanism to simulate the cracked region behavior. Two sets of tensile mechanical properties were considered for the constitutive material law: back-calculated (by an inverse analysis) tensile strength properties from the experimental results, and tensile strength properties calculated by simplified expressions from the fib Model Code for Concrete Structures 2010. Other mechanical properties were determined by additional compressive tests and standard relations for the dependency of various mechanical properties on the concrete compressive strength. The nonlinear finite element analysis incorporated the Menetrey-Willam material model to simulate the fiber-reinforced concrete behavior. The nonlinear semi-numeric analysis load-displacement results based on the back-calculated tensile strength properties relatively accurately matched with the experimental results, whereas the nonlinear semi-numeric analysis load-displacement results based on tensile strength properties calculated by simplified expressions from the fib Model Code for Concrete Structures 2010 and the nonlinear finite element analysis load-displacement results showed certain shortcomings. |
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| Keywords: | polymer fiber-reinforced concrete, moment-curvature relation, nonlinear plastic hinge, load-displacement relation, crack width, nonlinear analysis, finite element analysis, Menetrey-Willam material model, three-point bending test, compressive test |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 21.12.2023 |
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| Article acceptance date: | 14.02.2024 |
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| Publication date: | 17.02.2024 |
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| Publisher: | MDPI |
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| Year of publishing: | 2024 |
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| Number of pages: | 25 str. |
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| Numbering: | Vol. 14, iss. 4, [article no.] 1604 |
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| Source: | https://www.mdpi.com/journal/applsci |
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| PID: | 20.500.12556/DKUM-87103  |
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| UDC: | 624.012.4:519.6 |
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| ISSN on article: | 2076-3417 |
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| COBISS.SI-ID: | 186005507 |
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| DOI: | 10.3390/app14041604 |
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| Copyright: | © 2024 by the authors. |
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| Publication date in DKUM: | 19.02.2024 |
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| Views: | 536 |
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| Downloads: | 64 |
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| Metadata: |    |
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| Categories: | Misc.
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