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Department of Structural Mechanics and Computer Aided Engineering
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Modelowanie komputerowe mikrostruktur kompozytów za pomocą metod optymalizacji topologicznej PDF Print E-mail
Zgodnie z decyzją komisji Polsko-Francuskiej ds. Programu POLONIUM z 7 grudnia 2015 r., (por.
http://www.nauka.gov.pl/komunikaty/rozstrzygniecie-polsko-francuskiego-konkursu-polonium-2016-17.html)
nastąpiło: rozstrzygnięcie polsko-francuskiego konkursu POLONIUM 2016/17.
W szczególności, został zaakceptowany do realizacji w latach 2016-2017 r. projekt pt.: Modelowanie komputerowe mikrostruktur kompozytów za pomocą metod optymalizacji topologicznej (Construction of virtual microstructures of composites by the topology optimization methods).
koordynatorzy: J.-F. Ganghoffer, Univ. de Lorraine oraz T.Lewiński Politechnika Warszawska
 
On the Calibration of a Numerical Model for Concrete-to-Concrete Interface PDF Print E-mail
Sławomir Dudziak,  Wioletta Jackiewicz-Rek,  Zofia Kozyra, On the Calibration of a Numerical Model for Concrete-to-Concrete Interface, Materials 2021, 14(23), 7204;
online: https://doi.org/10.3390/ma14237204

Abstract
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.
 
prof. Tomasz Lewiński członkiem Rady Redakcyjnej PDF Print E-mail
Tomasz Lewiński został członkiem Rady Redakcyjnej periodyku : Symmetry, wydawca MDPI.
IF: 2.645 https://www.mdpi.com/journal/symmetry

Linkedin: https://www.linkedin.com/in/symmetry-basel/
Twitter: https://twitter.com/Symmetry_MDPI
Skład Rady Redakcyjnej:
https://www.mdpi.com/journal/symmetry/topic_editors

 
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Złota Kreda
 
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