Computational modelling of progressive failure of composite materials and structures including plasticity effects
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Inclou dades d'ús des de 2022
Cita com:
hdl:2117/183547
Tipus de documentText en actes de congrés
Data publicació2011
EditorCIMNE
Condicions d'accésAccés obert
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Abstract
The paper is concerned with the development and verification of the computational algorithm enabling the progressive failure simulation that takes into account plasticity effects in addition to the damage progression to be performed for composite materials and structures. The numerical approach is based on the combined elastoplastic damage model that accounts for the irreversible strains caused by plasticity effects and material properties degradation due to the damage initiation and development. The strain-driven implicit integration procedure is developed using equations of continuum damage mechanics, plasticity theory and includes the return mapping algorithm. A tangent operator that is consistent with the integration procedure is derived to ensure a computational efficiency of the Newton-Raphson method in the finite element analysis. The algorithm is implemented in ABAQUS as a user-defined subroutine. Prediction of the damage initiation in the laminated composite takes into account various failure mechanisms making use of Hashin’s failure criterion. The plasticity effects in composite material are modelled using the approach developed by C. T. Sun and J. L. Chen. The efficiency of the modelling approach and computational procedure is verified using the analysis of the progressive failure of composite laminates made of carbon fibre reinforced plastic and subjected to in-plane uniaxial tensile loading. It has been shown that the predicted results agree well with the experimental data.
CitacióMorozov, E. V.; Chen, J.; Shankar, K. Computational modelling of progressive failure of composite materials and structures including plasticity effects. A: COMPLAS XI. "COMPLAS XI : proceedings of the XI International Conference on Computational Plasticity : fundamentals and applications". CIMNE, 2011, p. 189-200.
ISBN978-84-89925-73-1
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COMPLAS-2011_17 ... delling pf progressive.pdf | 350,9Kb | Visualitza/Obre |