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Higher Order Continuum Modelling for Predicting the Mechanical Behaviour of Solid Foams
Author(s) -
Liebenstein Stefan,
Sandfeld Stefan,
Zaiser Michael
Publication year - 2014
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201410145
Subject(s) - shearing (physics) , softening , materials science , constitutive equation , mechanics , thermodynamics , statistical physics , composite material , physics , finite element method
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 the model has all desired properties. For parameter identification an example system of a honeycomb structure is investigated. (© 2014 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)