TY - JOUR
A1 - Gürlebeck, Klaus
A1 - Legatiuk, Dmitrii
A1 - Webber, Kemmar
T1 - Operator Calculus Approach to Comparison of Elasticity Models for Modelling of Masonry Structures
JF - Mathematics
N2 - The solution of any engineering problem starts with a modelling process aimed at formulating a mathematical model, which must describe the problem under consideration with sufficient precision. Because of heterogeneity of modern engineering applications, mathematical modelling scatters nowadays from incredibly precise micro- and even nano-modelling of materials to macro-modelling, which is more appropriate for practical engineering computations. In the field of masonry structures, a macro-model of the material can be constructed based on various elasticity theories, such as classical elasticity, micropolar elasticity and Cosserat elasticity. Evidently, a different macro-behaviour is expected depending on the specific theory used in the background. Although there have been several theoretical studies of different elasticity theories in recent years, there is still a lack of understanding of how modelling assumptions of different elasticity theories influence the modelling results of masonry structures. Therefore, a rigorous approach to comparison of different three-dimensional elasticity models based on quaternionic operator calculus is proposed in this paper. In this way, three elasticity models are described and spatial boundary value problems for these models are discussed. In particular, explicit representation formulae for their solutions are constructed. After that, by using these representation formulae, explicit estimates for the solutions obtained by different elasticity theories are obtained. Finally, several numerical examples are presented, which indicate a practical difference in the solutions.
KW - Mauerwerk
KW - Elastizitätstheorie
KW - Mathematische Modellierung
KW - quaternionic analysis
KW - mathematical modelling
KW - operator calculus
KW - model comparison
KW - micropolar elasticity
KW - OA-Publikationsfonds2022
Y1 - 2022
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20220721-46726
UR - https://www.mdpi.com/2227-7390/10/10/1670
VL - 2022
IS - Volume 10, issue 10, article 1670
SP - 1
EP - 22
PB - MDPI
CY - Basel
ER -