Artificial intelligence approach for detecting material deterioration in hybrid building constructions

Artificial intelligence approach for detecting material deterioration in hybrid building constructions Andrei V. Chesnokov1, Vitalii V. Mikhailov1, Ivan V. Dolmatov1 1The Faculty of Civil Engineering, Lipetsk State Technical University, Moskovskaya street 30, 398600 Lipetsk, Russian Federation. DOI: https://doi.org/10.7494/cmms.2021.2.0744 Abstract: Hybrid constructions include heterogeneous materials with different behaviors under load. The aim is to achieve a … Read more

A new BEM for modeling and simulation of 3T MDD laser-generated ultrasound stress waves in FGA smart materials

A new BEM for modeling and simulation of 3T MDD laser-generated ultrasound stress waves in FGA smart materials Mohamed A. Fahmy1,2 1Jamoum University College, Umm Al-Qura University, Alshohdaa 25371, Jamoum, Makkah, Saudi Arabia. 2Faculty of Computers and Informatics, Suez Canal University, New Campus, 4.5 Km, Ring Road, El Salam District, 41522 Ismailia, Egypt. DOI: https://doi.org/10.7494/cmms.2021.2.0739 … Read more

An evaluation of the mechanical properties of 13MnSiCr7 steel by digital image correlation

An evaluation of the mechanical properties of 13MnSiCr7 steel by digital image correlation Marcin Kempny1, Radosław Rozmus1 1Łukasiewicz Research Network, Institute for Ferrous Metallurgy, ul. K. Miarki 12–14, 44-100 Gliwice, Poland. DOI: https://doi.org/10.7494/cmms.2021.2.0754 Abstract: In this paper, the possibility of replacing tensile extensometers with a non-contacting device for measuring elongation has been analyzed. An example … Read more

Optimization of material distribution for forged automotive components using hybrid optimization techniques

Optimization of material distribution for forged automotive components using hybrid optimization techniques Przemysław Sebastjan1, Wacław Kuś1 1Silesian University of Technology, Department of Computational Mechanics and Engineering, Konarskiego 18A, Gliwice, Poland. DOI: https://doi.org/10.7494/cmms.2021.2.0746 Abstract: The paper deals with the problem of optimal material distribution inside the provided design area. Optimization based on deterministic and stochastic algorithms … Read more

FFT-based simulation using a reduced set of frequencies adapted to the underlying microstructure

FFT-based simulation using a reduced set of frequencies adapted to the underlying microstructure Christian Gierden1, Johanna Waimann1, Bob Svendsen2,3, Stefanie Reese1 1RWTH Aachen University, Institute of Applied Mechanics, 52074 Aachen, Germany. 2RWTH Aachen University, Material Mechanics, 52062 Aachen, Germany. 3Max-Planck-Institut für Eisenforschung GmbH, Microstructure Physics and Alloy Design,40237 Düsseldorf, Germany. DOI: https://doi.org/10.7494/cmms.2021.1.0742 Abstract: Instead of … Read more

Considering semi-crystallinity in molecular simulations of mechanical polymer properties –using nanoindentation of polyethylene as an example

Considering semi-crystallinity in molecular simulations of mechanical polymer properties – using nanoindentation of polyethylene as an example Susanne Fritz1 1FILK Freiberg Institute gGmbH, Meißner Ring 1-5, 09599 Freiberg, Germany. DOI: https://doi.org/10.7494/cmms.2021.1.0747 Abstract: Molecular dynamic (MD) simulations have been used to investigate the response of semi-crystalline polymers in nanoindentation tests, using polyethylene (PE) as an example. … Read more

A numerical simulation study of mold filling in the injection molding process

A numerical simulation study of mold filling in the injection molding process Markus Baum1, Denis Anders2 1Cologne University of Applied Sciences (TH Köln), Group for Computational Mechanics and Fluid Dynamics, Steinmüllerallee 1, 51643 Gummersbach, Germany. 2Cologne University of Applied Sciences (TH Köln), Group for Computational Mechanics and Fluid Dynamics, Steinmüllerallee 1, 51643 Gummersbach, Germany. DOI: … Read more

The influence of material aging on the structural behavior of a flexible roof with a polymer membrane shell

The influence of material aging on the structural behavior of a flexible roof with a polymer membrane shell Andrei V. Chesnokov1, Vitalii V. Mikhailov1, Ivan V. Dolmatov1 1The Faculty of Civil Engineering, Lipetsk State Technical University, Moskovskaya street 30, 398600 Lipetsk, Russian Federation. DOI: https://doi.org/10.7494/cmms.2021.1.0748 Abstract: The roof structure considered in the research consists of … Read more

A model for changing the technological process for the growth of epitaxial layers by means of the heating of the growth zone

A model for changing the technological process for the growth of epitaxial layers by means of the heating of the growth zone Evgeny L. Pankratov1, 2 1Nizhny Novgorod State University, 23 Gagarin avenue, Nizhny Novgorod, 603950, Russia 2Nizhny Novgorod State Technical University, 24 Minin Street, Nizhny Novgorod, 603950, Russia DOI: https://doi.org/10.7494/cmms.2021.1.0741 Abstract: The nonstationary transfer … Read more

The effect of the assumed thermophysical properties of steel on the heat transfer calculation result in contact phenomena

The effect of the assumed thermophysical properties of steel on the heat transfer calculation result in contact phenomena Marcin Rywotycki1, Zbigniew Malinowski1, Aleksandra Przyłucka1, Krzysztof Sołek2 1AGH University of Science and Technology, Department of Heat Engineering & Environment Protection, al. Mickiewicza 30,30-059 Krakow, Poland. 2AGH University of Science and Technology, Department of Ferrous Metallurgy, al. … Read more