Effects of symmetrisation of net-stress tensor in anisotropic damage models
Source abstract
Abstract
In anisotropic damage mechanics, matrix symmetrisation scheme or treatment in net-stress space is used for mathematical convenience without a strong physical basis. Two different symmetrisation schemes for anisotropic damage model have been compared with the non-symmetrised models proposed for this study. The effects of these symmetrisation schemes are assessed in this paper by deriving the corresponding explicit form of various key parameters for anisotropic damage modelling. It is found that in most cases the symmetrisation process markedly influences the resultant parameters that may lead to spurious results. Hence such a symmetrisation treatment of an anisotropic damage model should be carefully examined. A numerical analysis of a direct shear experiment is also presented to support the assessment of the effects of the symmetrisation schemes considered.
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Research context
OpenAlex topics: Metal Forming Simulation Techniques · Numerical methods in engineering · High-Velocity Impact and Material Behavior
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References (18)
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