Microstructure dependent fatigue life prediction for short fibers reinforced composites: Application to sheet molding compounds
TypeArticles dans des revues avec comité de lecture
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 microstructure selection involving an original ultrasonic method which is briefly presented. Then, on the basis of four selected microstructure configurations, an accurate experimental damage analysis is performed including both monotonic and cyclic loading. The high microstructure dependence of the obtained Whöler curves is demonstrated. Moreover, an experimental link between monotonic damage and fatigue life is emphasized. Then, a new fatigue life prediction methodology based on the later is proposed. This methodology also uses a micromechanical damage model in which a local damage criterion is involved for monotonic loading damage prediction. A very good agreement between experimental and predicted Whöler curves is demonstrated for all studied microstructures and three working temperatures. Finally, the model allows building a microstructure dependent Whöler curve abacus which may be very useful for SMC structures design.
Files in this item
Showing items related by title, author, creator and subject.
Damage and fatigue life prediction of short fiber reinforced composites submitted to variable temperature loading: Application to Sheet Molding Compound composites TAMBOURA, S.; LARIBI, M.A.; FITOUSSI, J.; SHIRINBAYAN, M.; BI, R. Tie; TCHARKHTCHI, A.; DALI, H. Ben (Elsevier, 2020)The majority of fatigue life prediction models which have been proposed for the Short Fiber Reinforced Composite (SFRC) materials have been developed for constant temperature. However, in real situations, SFRC structures ...
Fast fatigue life prediction of short fiber reinforced composites using a new hybrid damage approach: Application to SMC LARIBI, M.A.; TAMBOURA, Sahbi; FITOUSSI, JOSEPH; TCHARKHTCHI, Abbas; BEN DALI, H. (2018)Industrial design of Short Fiber Reinforced Composites (SFRC) structures is subject to several compounding and processing steps of optimization. Moreover, these structures are often submitted to fatigue loading. Therefore, ...
Micromechanical Modelling of Dynamic Behavior of Advanced Sheet Molding Compound (A-SMC) Composite AYARI, H.; SHIRINBAYAN, M.; IMADDAHEN, A.; TAMBOURA, S.; BEN DALY, H.; TCHARKHTCHI, A.; FITOUSSI, J. (Springer, 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 ...
Multi-scale analysis of the effect of loading conditions on monotonic and fatigue behavior of a glass fiber reinforced polyphenylene sulfide (PPS) composite ZUO, P.; BENEVIDES, R.C.; LARIBI, M.A.; FITOUSSI, JOSEPH; SHIRINBAYAN, M; BAKIR, Farid; TCHARKHTCHI, Abbas (Elsevier, 2018)In this paper, two kinds of PPS/GF composite samples (PPS-0°, PPS-90°) were prepared with two different fiber main orientations related to the injection direction. A wide range of their properties were discussed. Using ...
Multi-scale analysis of the effect of loading conditions on monotonic and fatigue behavior of a glass fiber reinforced polyphenylene sulfide (PPS) composite ZUO, Peiyuan; BENEVIDES, R.C.; LARIBI, M.A.; FITOUSSI, Joseph; SHIRINBAYAN, Mohammadali; TCHARKHTCHI, Abbas; BAKIR, Farid (ELSEVIER, 2018)In this paper, two kinds of PPS/GF composite samples (PPS-0°, PPS-90°) were prepared with two different fiber main orientations related to the injection direction. A wide range of their properties were discussed. Using ...