Two Hybrid Approaches to Fatigue Modeling of Advanced-Sheet Molding Compounds (A-SMC) Composite
Article dans une revue avec comité de lecture
To reinforce the environmental standards, we need to strengthen the lightening of vehicles and to generalize new composite materials in order to reduce weight. To use these innovative composite materials in the mass production of automotive parts, it is essential to propose a predictive approach of the S-N curves, which must be established for each new composite formulation and for several types of microstructure within real components. Although these preliminary characterizations consume time and money, this paper proposes two hybrid methodologies to predict the fatigue life during the fatigue test. Both methodologies are based on micromechanical modeling which is developed under monotonous loading with fatigue effects under different amplitudes. The suggested methodology is based on an experimental analysis of monotonic behavior under fatigue loading and on multi-scale modeling of damage. In the results, the proposed model and the used approaches are in good agreement with the experimental results.
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Micromechanical Modelling of Dynamic Behavior of Advanced Sheet Molding Compound (A-SMC) Composite Article dans une revue avec comité de lectureAYARI, Houssem; SHIRINBAYAN, Mohammadali; IMADDAHEN, Amine; TAMBOURA, Sahbi; BEN DALY, Hachmi; TCHARKHTCHI, Abbas; FITOUSSI, Joseph (Springer Verlag (Germany), 2020)Passive safety, particularly in the transport industry, requires maximizing the dissipation of energy and minimizing the decelerations undergone by a vehicle following a violent impact (crash). This paper proposes a strategy ...
Experimental and numerical multi-scale approach for Sheet-Molding-Compound composites fatigue prediction based on fiber-matrix interface cyclic damage Article dans une revue avec comité de lectureTAMBOURA, Sahbi; AYARI, Houssem; SHIRINBAYAN, Mohammadali; LARIBI, Mohamad-Amine; BENDALY, Hachmi; SIDHOM, Habib; TCHARKHTCHI, Abbas; FITOUSSI, Joseph (Elsevier, 2020)In this paper, a multi-scale approach is proposed to predict the stiffness reduction of a Sheet-Molding-Compound (SMC) composite submitted to low cycle fatigue (until 2.105 cycles). Strain-controlled tensile fatigue tests ...
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Microstructure dependent fatigue life prediction for short fibers reinforced composites: Application to sheet molding compounds Article dans une revue avec comité de lectureLARIBI, Mohamad-Amine; TAMBOURA, Sahbi; FITOUSSI, Joseph; SHIRINBAYAN, Mohammadali; BI, R.Tie; TCHARKHTCHI, Abbas; BEN DALI, Hachmi (Elsevier, 2020)Because of the high variability of SMC microstructure due to material flow during thermoforming, fatigue life prediction in real automotive structure represents a huge challenge. In this paper, we present a two-step ...
Article dans une revue avec comité de lectureLARIBI, Mohamed-Amine; TAMBOURA, Sahbi; FITOUSSI, Joseph; SHIRINBAYAN, Mohammadali; BI, R. Tie; TCHARKHTCHI, Abbas; BEN DALI, Hachmi (Springer Science and Business Media LLC, 2021)Short Fiber Reinforced Composite (SFRC) structures exhibit multiple microstructures (due to material flow during the process). They are generally subjected to variable amplitude loadings. In this context, a robust model ...