Zobrazeno 1 - 10
of 116
pro vyhledávání: '"Rokoš, O."'
Publikováno v:
International Journal of Solids and Structures 112916 (2024)
A micromorphic computational homogenization framework has recently been developed to deal with materials showing long-range correlated interactions, i.e. displaying patterning modes. Typical examples of such materials are elastomeric mechanical metam
Externí odkaz:
http://arxiv.org/abs/2406.13810
The structural properties of mechanical metamaterials are typically studied with two-scale methods based on computational homogenization. Because such materials have a complex microstructure, enriched schemes such as second-order computational homoge
Externí odkaz:
http://arxiv.org/abs/2405.00437
Autor:
Sperling, S. O., Guo, T., Peerlings, R. H. J., Kouznetsova, V. G., Geers, M. G. D., Rokoš, O.
Elastomeric mechanical metamaterials exhibit unconventional mechanical behaviour owing to their complex microstructures. A clear transition in the effective properties emerges under compressive loading, which is triggered by local instabilities and p
Externí odkaz:
http://arxiv.org/abs/2307.10952
Publikováno v:
International Journal of Solids and Structures 112130 (2023)
Micromechanical constitutive parameters are important for many engineering materials, typically in microelectronic applications and material design. Their accurate identification poses a three-fold experimental challenge: (i) deformation of the micro
Externí odkaz:
http://arxiv.org/abs/2302.03600
In fibrous paper materials, an exposure to a variation in moisture content causes changes in the geometrical and mechanical properties. Such changes are strongly affected by the inter-fibre bonds, which are responsible for the transfer of the hygro-m
Externí odkaz:
http://arxiv.org/abs/2210.05736
Comparative study of multiscale computational strategies for materials with discrete microstructures
The evolution of local defects such as dislocations and cracks often determines the performance of engineering materials. For a proper description and understanding of these phenomena, one needs to descend to a very small scale, at which the discrete
Externí odkaz:
http://arxiv.org/abs/2105.00731
Mechanical metamaterials feature engineered microstructures designed to exhibit exotic, and often counter-intuitive, effective behaviour. Such a behaviour is often achieved through instability-induced transformations of the underlying periodic micros
Externí odkaz:
http://arxiv.org/abs/2008.12850
Materials like paper, consisting of a network of natural fibres, exposed to variations in moisture, undergo changes in geometrical and mechanical properties. This behaviour is particularly important for understanding the hygro-mechanical response of
Externí odkaz:
http://arxiv.org/abs/2006.14049
Cellular elastomeric metamaterials are interesting for various applications, e.g. soft robotics, as they may exhibit multiple microstructural pattern transformations, each with its characteristic mechanical behavior. Numerical literature studies reve
Externí odkaz:
http://arxiv.org/abs/2005.05922
Honeycomb-like microstructures have been shown to exhibit local elastic buckling under compression, with three possible geometric buckling modes, or pattern transformations. The individual pattern transformations, and consequently also spatially dist
Externí odkaz:
http://arxiv.org/abs/2004.05226