On a 3D micromechanical damage model
Source abstract
Abstract
In the present contribution a 3D two-scale damage model is obtained by asymptotic-developments homogenization, assuming a locally periodic micro-crack distribution. At the microscopic level an energy-based propagation criterion is considered and the macroscopic damage equations are completely deduced through the change of scale procedure. We show that the new damage equations naturally capture microscopic lengths. Their presence in the macroscopic equations leads to size effects, which are investigated in the case of brittle and quasi-brittle damage. The differences with respect to previous results, concerning the 2D case, are pointed out.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Numerical methods in engineering · Composite Material Mechanics · Rock Mechanics and Modeling
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References (14)
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