Micro and macroscopic characterization of A-SMC under high speed tensile test
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Date
2015Résumé
Advanced Sheet Molding Compound (A-SMC) is a serious composite material candidate for structural automotive parts. It has a thermoset matrix and consists of high weight content of glass fibers (50% in mass) compared to standard SMC with less than 30% weight fiber content. During crash events, structural parts are heavily exposed to high rates of loading and straining. This work is concerned with the development of an advanced experimental approach devoted to the micro and macroscopic characterization of A-SMC mechanical behavior under high-speed tension. High speed tensile test are achieved using servo-hydraulic test equipment in order to get required high strain rates up to 100 s -1 . Local deformation is measured through a contactless technique using a high speed camera. Numerical computations have led to an optimal design of the specimen geometry and the experimental damping systems have been optimised in terms of thickness and material properties. These simulations were achieved using ABAQUS explicit finite element code. The developed experimental methodology is applied for two types of A-SMC: Randomly Oriented fibers (RO) and Highly Oriented fibers (HO) plates. In the case of HO samples, two tensile directions were chosen: HO-0° (parallel to the Mold Flow Direction (MFD)) and HO-90° (perpendicular to the MFD). High speed tensile tests results show that A-SMC behavior is strain-rate dependent although the young’s modulus remains constant with increasing strain rate. In the case of HO-0°, the stress damage threshold is shown an increase of 63%, when the strain rate varies from quasi-static (0.001 s -1 ) to 100 s -1 .
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- LEM3_ICCM_2015_SHIRINBAYAN.pdf
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- 1.285Mo
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Documents liés
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High strain rate visco-damageable behavior of Advanced Sheet Molding Compound (A-SMC) under tension Article dans une revue avec comité de lectureSHIRINBAYAN, Mohammadali; SUROWIEC, Benjamin; BOCQUET, Michel;
TCHARKHTCHI, Abbas;
FITOUSSI, Joseph;
MERAGHNI, Fodil (Elsevier, 2015)
Advanced Sheet Molding Compound (A-SMC) is a serious composite material candidate for structural automotive parts. It has a thermoset matrix and consists of high weight content of glass fibers (50% in mass) compared to ... -
High strain rate visco-damageable behavior of Advanced Sheet Molding Compound (A-SMC) under tension Article dans une revue avec comité de lectureSHIRINBAYAN, Mohammadali; SUROWIEC, Benjamin; BOCQUET, Michel;
TCHARKHTCHI, Abbas;
FITOUSSI, Joseph;
MERAGHNI, Fodil (Elsevier, 2015)
Advanced Sheet Molding Compound (A-SMC) is a serious composite material candidate for structural automotive parts. It has a thermoset matrix and consists of high weight content of glass fibers (50% in mass) compared to ... -
Article dans une revue avec comité de lectureSHIRINBAYAN, Mohammadali; BOCQUET, Michel; SUROWIEC, Benjamin;
TCHARKHTCHI, Abbas;
FITOUSSI, Joseph;
MERAGHNI, Fodil (Elsevier, 2017)
This paper aims to present an experimental multi-scale analysis of quasi-static and high strain rate damage behavior of a new formulation of SMC composite (Advanced SMC). In order to study its capability to absorb energy ... -
Article dans une revue avec comité de lectureSHIRINBAYAN, Mohammadali; ABBASNEZHAD, Navideh; SUROWIEC, Benjamin;
TCHARKHTCHI, Abbas;
FITOUSSI, Joseph;
MERAGHNI, Fodil (Elsevier, 2017)
This paper presents the results of an overall experimental characterization of the mechanical behavior of a Low Density Sheet Molding Compound (LD-SMC). LD-SMC is a polyester matrix containing mineral charge (CaCO3) ... -
Article dans une revue avec comité de lectureSHIRINBAYAN, Mohammadali; FARZANEH, S.; SUROWIEC, Benjamin;
TCHARKHTCHI, Abbas;
FITOUSSI, Joseph;
MERAGHNI, Fodil (Springer Verlag (Germany), 2019)
The purpose of this article is to investigate the effect of an initial pre-damage induced by a fatigue loading on the tensile dynamic behavior of Advanced Sheet Molding Compounds (A-SMC). Tension-tension fatigue preloading ...