Contact interactions in complex fibrous metamaterials: a proposal for elastic energy and Rayleigh dissipation potential
Spagnuolo M.
First
;Cazzani A. M.Second
2021-01-01
Abstract
In this work, an extension of the strain energy for fibrous metamaterials composed of two families of parallel fibers lying on parallel planes and joined by connective elements is proposed. The suggested extension concerns the possibility that the constituent fibers come into contact and eventually scroll one with respect to the other with consequent dissipation due to friction. The fibers interact with each other in at least three different ways: indirectly, through microstructural connections that could allow a relative sliding between the two families of fibers; directly, as the fibers of a family can touch each other and can scroll introducing dissipation. From a mathematical point of view, these effects are modeled first by introducing two placement fields for the two fiber families and adding a coupling term to the strain energy and secondly by adding two other terms that take into account the interdistance between the parallel fibers and the Rayleigh dissipation potential (to account for friction).File | Size | Format | |
---|---|---|---|
2021SpagnuoloCMAT.pdf open access
Description: articolo online
Type: versione editoriale
Size 860.67 kB
Format Adobe PDF
|
860.67 kB | Adobe PDF | View/Open |
fiber_contact_interactions.pdf open access
Type: versione pre-print
Size 1.37 MB
Format Adobe PDF
|
1.37 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.