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Modeling damages and cracks growth in composite with a 3D discrete element method

Article dans une revue avec comité de lecture
Auteur
LE, Ba Danh
CHARLES, Jean-Luc
ccIORDANOFF, Ivan
ccDAU, Frédéric

URI
http://hdl.handle.net/10985/17358
DOI
10.1016/j.compositesb.2016.01.021
Date
2016
Journal
Composites Part B: Engineering

Résumé

This paper presents a 3D simulation of damages and cracks growth in composite material using Discrete Element Method (DEM). Fiber/matrix debonding and ply to ply delamination, cracks matrix, rupture of fibers are addressed. Matrix and fiber are supposed to be brittle materials and follow a linear fracture model. Cohesive contact laws are implemented to model interfaces behavior for both debonding (fiber/ matrix) and delamination (ply/ply). Piecewise linear elastic laws usually used in cohesive zone models are retained in this work. A Double Cantiliver Beam (DCB) test is first experimented using the present DEM with Cohesive Contact Models (CCM). Then, based on De Borst's works [1], a single fiber composite under transverse traction is modeled to study debonding and matrix cracks propagations depending on the matrix and the fiber/matrix interface strengths ratio. A bi-disperse medium for matrix and fiber is specifically elaborated to reduce the discrete elements number. The analysis is extended to a so-called multi-fibers composite specimen, also called Statistical Elementary Volume (SEV), made of several fibers embedded in the matrix. Finally, the results are compared with DeBorst's works and qualitatively discussed.

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  • Institut de Mécanique et d’Ingénierie de Bordeaux (I2M)

Documents liés

Visualiser des documents liés par titre, auteur, créateur et sujet.

  • Multiscale Modeling of Complex Dynamic Problems: An Overview and Recent Developments 
    Article dans une revue avec comité de lecture
    CHARLES, Jean-Luc; ccIORDANOFF, Ivan; ccDAU, Frédéric; ccJEBAHI, Mohamed (Springer Verlag, 2014)
    Multiscale modeling aims to solve problems at the engineering (macro) scale while considering the complexity of the microstructure with minimum cost. Generally, two scales are considered in multiscale modeling: small scale, ...
  • 3D coupling approach between discrete and continuum models for dynamic simulations (DEM–CNEM) 
    Article dans une revue avec comité de lecture
    CHARLES, Jean-Luc; ILLOUL, Lounès; ccIORDANOFF, Ivan; ccDAU, Frédéric; ccJEBAHI, Mohamed (Elsevier, 2013)
    The coupling between two dissimilar numerical methods presents a major challenge, especially in case of discrete–continuum coupling. The Arlequin approach provides a flexible framework and presents several advantages in ...
  • Simulation of Vickers indentation of silica glass 
    Article dans une revue avec comité de lecture
    ccJEBAHI, Mohamed; ANDRE, Damien; ccDAU, Frédéric; CHARLES, Jean-Luc; ccIORDANOFF, Ivan (Elsevier, 2013)
    The indentation response of glasses can be classified under three headings: normal, anomalous and intermediate, depending on the deformation mechanism and the cracking response. Silica glass, as a typical anomalous glass, ...
  • Simulation du comportement de la silice sous indentation Vickers par la méthode des elements discrets: densification et mécanismes de fissuration 
    Communication avec acte
    ANDRE, Damien; CHARLES, Jean-Luc; ccIORDANOFF, Ivan; ccDAU, Frédéric; ccJEBAHI, Mohamed (2013)
    The indentation response of glasses can be classified into three classes : normal, anomalous and intermediate depending on the deformation mechanism and the cracking response. Silica glass, as a typical anomalous glass, ...
  • A promising way to model cracks in composite using Discrete Element Method 
    Article dans une revue avec comité de lecture
    MAHEO, Laurent; ANDRE, Damien; CHARLES, Jean-Luc; ccIORDANOFF, Ivan; ccDAU, Frédéric (Elsevier, 2015)
    In this article, the Discrete Element Method (DEM) is taking advantage for the damage modeling of a composite material. At this stage of work, a Representative Elementary Volume (REV) of an unidirectional composite material ...

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