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Influence of Stress Concentration Factor on the Evolution of the Strain Energy Release Rate at High Temperature in Highly Ductile Carbon Fibers Reinforced Thermoplastic Structures

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Design and Modeling of Mechanical Systems—III (CMSM 2017)

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Abstract

This work was aimed at investigating the influence of stress concentration factor on the evolution of the strain energy release rate J in 5-harness satin weave carbon fabrics reinforced Polyphenylene sulphide (PPS) structures at 120 °C (higher than the transition temperature Tg). The studied angle-ply (AP) laminates are characterized by a highly ductile behavior. For this purpose, the load separation method, as well as the compliance method, are applied in order to determine the strain energy release rate J for different crack length over specimen width ratios a/W. A fractographic analysis was conducted to understand the chronology of damage mechanisms which significantly depends on the enhanced PPS matrix ductility and toughness at T > Tg. An acoustic emission (AE) technique was used to investigate the correlation between the energy released during translaminar cracking and the cumulative AE energy/events for different stress concentration factors. Fibers breakage appears to be not very energetic from the AE standpoint. Finally, blunting is instrumental in increasing the strain energy release rate in specimens with low-stress concentration factors, due to large plastic deformations at the crack tip.

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Author information

Authors and Affiliations

  1. Groupe de Physique des Matériaux UMR 6634 CNRS, Department of Mechanical Engineering, National Institute of Applied Sciences of Rouen, 76801, St Etienne du Rouvray, France

    M. Chabchoub, B. Vieille & L. Taleb

  2. Laboratory of Mechanics, Modelling and Production, Department of Mechanical Engineering, National School of Engineers of Sfax, Route Soukra, 3038, Sfax, Tunisia

    M. Chabchoub, M. Beyaoui, M. Taktak & M. Haddar

  3. Laboratoire de Mécanique de Normandie (LMN), Department of Mechanical Engineering, National Institute of Applied Sciences of Rouen, 76801, St Etienne du Rouvray, France

    C. Gautrelet

Authors
  1. M. Chabchoub
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  2. B. Vieille
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  3. C. Gautrelet
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  4. M. Beyaoui
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  5. M. Taktak
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  6. M. Haddar
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  7. L. Taleb
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Corresponding author

Correspondence to M. Chabchoub .

Editor information

Editors and Affiliations

  1. National School of Engineers of Sfax, Sfax, Tunisia

    Mohamed Haddar

  2. National School of Engineers of Sfax, Sfax, Tunisia

    Fakher Chaari

  3. National School of Engineers of Monastir, Monastir, Tunisia

    Abdelmajid Benamara

  4. National School of Engineers of Monastir, Monastir, Tunisia

    Mnaouar Chouchane

  5. Sfax Preparatory Engineering Institute, Sfax, Tunisia

    Chafik Karra

  6. National School of Engineers of Monastir, Monastir, Tunisia

    Nizar Aifaoui

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Chabchoub, M. et al. (2018). Influence of Stress Concentration Factor on the Evolution of the Strain Energy Release Rate at High Temperature in Highly Ductile Carbon Fibers Reinforced Thermoplastic Structures. In: Haddar, M., Chaari, F., Benamara, A., Chouchane, M., Karra, C., Aifaoui, N. (eds) Design and Modeling of Mechanical Systems—III. CMSM 2017. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-66697-6_98

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  • DOI: https://doi.org/10.1007/978-3-319-66697-6_98

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-66696-9

  • Online ISBN: 978-3-319-66697-6

  • eBook Packages: EngineeringEngineering (R0)

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