An orthotropic multi-surface damage-plasticity FE-formulation for wood: Part II – Numerical applications

•We consider damage under tensile/shear stresses and plasticity.•The model transitions from the continuous damage plasticity regime of Part I to a regularized XFEM regime.•The transition is smooth.•Failure is correctly captured. The present study investigates the modelling capabilities offered by th...

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Bibliographic Details
Published in:Computers & structures 2020-11, Vol.240, p.106351, Article 106351
Main Authors: Benvenuti, E., Orlando, N., Gebhardt, C., Kaliske, M.
Format: Article
Language:English
Subjects:
Damage
Discontinuity
Ductile-brittle transition
Finite element method
Mathematical models
Multi-surface criteria
Plastic properties
Plasticity
Wood
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Summary:•We consider damage under tensile/shear stresses and plasticity.•The model transitions from the continuous damage plasticity regime of Part I to a regularized XFEM regime.•The transition is smooth.•Failure is correctly captured. The present study investigates the modelling capabilities offered by the multi-surface damage-plasticity FE-formulation illustrated in Part I [1] when integrated with a regularized extended finite element model. The aim is to tackle discontinuous displacements and interfaces. In particular, we show how to embed a regularized discontinuity within an element, carry out the transition from the continuous to the regularized discontinuous regime and obtain physically consistent results. We present a wide set of applications ranging from brittle to ductile failure, displaying the effectiveness of the proposed FE-approach versus the experimental results.
ISSN:0045-7949
1879-2243
DOI:10.1016/j.compstruc.2020.106351