Failure Analysis of Anisotropic Materials with Embedded Fibres Using the Extended Lumped Damage Mechanics
DOI:
https://doi.org/10.70567/mc.v42.ocsid8366Keywords:
Anisotropic materials, embedded reinforcements, damage mechanicsAbstract
The use of materials with anisotropic behaviour has grown in recent decades, driven by the pursuit of more efficient structural solutions. Fibre reinforcement stands out as an effective strategy to improve mechanical performance in directions of lower intrinsic strength. However, failure modelling in such materials remains a relevant challenge. This study employs the Extended Lumped Damage Mechanics (XLDM) approach to describe the physically nonlinear behaviour of fibre reinforced anisotropic materials. The method has proven robust in analysing structural degradation. An embedding technique is used to account for reinforcement effects without adding degrees of freedom. The formulation has been implemented in a computational code based on the finite element method with a position-based structure, allowing the consideration of geometric nonlinearity in damage evolution.
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