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Thermodynamic formulation of a material model for microcracking applied to creep damage
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Procedia Materials Science, Volume 3, pp. 1179-1184
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.
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VK: T20403
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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