Cargando…
On the Calibration of a Numerical Model for Concrete-to-Concrete Interface
The study was devoted to the numerical modelling of concrete-to-concrete interfaces. Such an interface can be found in many modern composite structures, so proper characterisation of its behaviour is of great importance. A strategy for calibration of a model based on cohesive finite elements and the...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8658101/ https://www.ncbi.nlm.nih.gov/pubmed/34885358 http://dx.doi.org/10.3390/ma14237204 |
_version_ | 1784612650410311680 |
---|---|
author | Dudziak, Sławomir Jackiewicz-Rek, Wioletta Kozyra, Zofia |
author_facet | Dudziak, Sławomir Jackiewicz-Rek, Wioletta Kozyra, Zofia |
author_sort | Dudziak, Sławomir |
collection | PubMed |
description | The study was devoted to the numerical modelling of concrete-to-concrete interfaces. Such an interface can be found in many modern composite structures, so proper characterisation of its behaviour is of great importance. A strategy for calibration of a model based on cohesive finite elements and the elastic-damage traction–separation constitutive law available by default in the Abaqus code was proposed. Moreover, the default interface material model was enhanced with the user-field-variables subroutine to include a real strength envelope for such interfaces. Afterwards, the modelling approach was validated with numerical simulation of the most popular tests for determining the strength characteristics of concrete-to-concrete interfaces: three-point bending beam with a notch, splitting bi-material cubic specimens, and slant-shear tests. The results of own pilot studies were used as well as those reported by other researchers. The performed simulations proved the accuracy of the proposed modelling strategy (the mean ratio of ultimate forces obtained with numerical models and from experiments was equal to 1.01). Furthermore, the presented examples allowed us to better understand the basic test methods for concrete interfaces and the observed mechanisms of failure during them. |
format | Online Article Text |
id | pubmed-8658101 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-86581012021-12-10 On the Calibration of a Numerical Model for Concrete-to-Concrete Interface Dudziak, Sławomir Jackiewicz-Rek, Wioletta Kozyra, Zofia Materials (Basel) Article The study was devoted to the numerical modelling of concrete-to-concrete interfaces. Such an interface can be found in many modern composite structures, so proper characterisation of its behaviour is of great importance. A strategy for calibration of a model based on cohesive finite elements and the elastic-damage traction–separation constitutive law available by default in the Abaqus code was proposed. Moreover, the default interface material model was enhanced with the user-field-variables subroutine to include a real strength envelope for such interfaces. Afterwards, the modelling approach was validated with numerical simulation of the most popular tests for determining the strength characteristics of concrete-to-concrete interfaces: three-point bending beam with a notch, splitting bi-material cubic specimens, and slant-shear tests. The results of own pilot studies were used as well as those reported by other researchers. The performed simulations proved the accuracy of the proposed modelling strategy (the mean ratio of ultimate forces obtained with numerical models and from experiments was equal to 1.01). Furthermore, the presented examples allowed us to better understand the basic test methods for concrete interfaces and the observed mechanisms of failure during them. MDPI 2021-11-25 /pmc/articles/PMC8658101/ /pubmed/34885358 http://dx.doi.org/10.3390/ma14237204 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Dudziak, Sławomir Jackiewicz-Rek, Wioletta Kozyra, Zofia On the Calibration of a Numerical Model for Concrete-to-Concrete Interface |
title | On the Calibration of a Numerical Model for Concrete-to-Concrete Interface |
title_full | On the Calibration of a Numerical Model for Concrete-to-Concrete Interface |
title_fullStr | On the Calibration of a Numerical Model for Concrete-to-Concrete Interface |
title_full_unstemmed | On the Calibration of a Numerical Model for Concrete-to-Concrete Interface |
title_short | On the Calibration of a Numerical Model for Concrete-to-Concrete Interface |
title_sort | on the calibration of a numerical model for concrete-to-concrete interface |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8658101/ https://www.ncbi.nlm.nih.gov/pubmed/34885358 http://dx.doi.org/10.3390/ma14237204 |
work_keys_str_mv | AT dudziaksławomir onthecalibrationofanumericalmodelforconcretetoconcreteinterface AT jackiewiczrekwioletta onthecalibrationofanumericalmodelforconcretetoconcreteinterface AT kozyrazofia onthecalibrationofanumericalmodelforconcretetoconcreteinterface |