Zobrazeno 1 - 4
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pro vyhledávání: '"Stefan Liebenstein"'
Autor:
Stefan Liebenstein, Michael Zaiser
Publikováno v:
Materials Theory, Vol 2, Iss 1, Pp 1-20 (2018)
Abstract We present results of a two-scale model of disordered cellular materials where we describe the microstructure in an idealized manner using a beam network model and then make a transition to a Cosserat-type continuum model describing the same
Externí odkaz:
https://doaj.org/article/ffd9fc8a14974566b0fdc740f61fe46a
Publikováno v:
International Journal of Solids and Structures. 146:97-116
Cellular solids usually possess random microstructures that may contain a characteristic length scale, such as the cell size. This gives rise to size dependent mechanical properties where large systems behave differently from small systems. Furthermo
Autor:
Tim Stratford, Thomas W. Barraclough, Stefan Sandfeld, Michael Zaiser, Gerhard Weinländer, Jane R. Blackford, Stefan Liebenstein
Publikováno v:
Barraclough, T, Blackford, J, Liebenstein, S, Sandfeld, S, Stratford, T, Weinländer, G & Zaiser, M 2018, ' Propagating compaction bands in confined compression of snow ', Nature Physics, vol. 13, pp. 272-275 . https://doi.org/10.1038/nphys3966
Some materials are strong in response to a slowly applied deformation, yet weak when subject to rapid deformations—a materials property known as strain-rate softening1. Snow exhibits such behaviour: it is comparatively strong at low deformation rat
Publikováno v:
PAMM. 14:315-316
A higher order continuum model is presented, which is able to capture size effects and regularize softening in rotational, shearing and especially compressive settings. It is shown that with a minimal setting of 3 additional constitutive parameters t