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“Computational Civil Engineering - "Intersections" International Journal

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“Computational <strong>Civil</strong> <strong>Engineering</strong> 2005”, <strong>International</strong> Symposium 125Stress function particularizationSimo and Ju stress function [26, 27] is used in the paper( σ ) = 2 Ψ ( ε = ε C : ετ = f (A.19)0 0 )Taking into account this function, parameter A used in Equation (A.18) canbe written asA =gf11−0 2( f ( σ )) 20: 0(A.20)whereg frepresents the maximum of the fracture energy to be dissipated at eachpoint of the solid andfirst damage threshold.f 0 ( σ 0) is the value given by the threshold equation for the

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