Thermodynamic formulation of a material model for microcracking applied to creep damage
Loading...
Access rights
openAccess
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Authors
Date
2014
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
1179-1184
Series
Procedia Materials Science, Volume 3
Abstract
A Hookean material containing an increasing number of non-interacting microcracks is studied from the aspect of continuum thermodynamics. Rectilinear microcracks in a two-dimensional body are examined. The former model by Basista (2003) is enhanced to describe the response of microcracks to compression. Microcrack densities introduced here enter into the formulation of continuum thermodynamics as internal variables. The strong physical foundation of these internal variables makes them more attractive quantities for damage mechanics than variable damage, the physical background of which is sometimes unclear. The model is coded as an Abaqus VUMAT subroutine and applied to the creep of ice.Description
VK: T20403
Keywords
Abaqus VUMAT, Clausius-Duhem inequality, ice, material modelling, microcracking, specific Gibbs free energy, thermodynamics
Other note
Citation
Santaoja, K 2014, ' Thermodynamic formulation of a material model for microcracking applied to creep damage ', Procedia Materials Science, vol. 3, pp. 1179-1184 . https://doi.org/10.1016/j.mspro.2014.06.192