Determination of orthotropic properties of glass fibre reinforced thermoplastics using X-ray tomography and multiscale finite element computation. (February 2016)

• Record Type: Journal Article
• Authors: Ayadi, Abderrahmane; Nouri, Hedi; Guessasma, Sofiane; Roger, Frederic
• Is Part Of: Composite structures. Volume 136(2016)
• Page Start: 635
• Page End: 649
• Publication Date: 2016-02
• Subjects: Glass fibres -- Mechanical properties -- Finite element analysis -- Injection moulding -- X-ray micro-tomography; Composite construction -- Periodicals; Composites -- Périodiques; 624.18
• DOI: 10.1016/j.compstruct.2015.10.041
• Languages: English
• ISSNs: 0263-8223

Abstract

Abstract: We report a new approach to measure orthotropic properties of short glass fibre reinforced thermoplastics at the macroscopic scale taking into account all microstructural details. 3D imaging technique based on X-ray micro-tomography is used to assess fibrous architecture of an injected part at different positions characterised by different fibre flow histories. Finite element computation is used as a multiscale process, firstly by computing orthotropic parameters at a micro-scale for hundreds of bi-phasic 3D domains composing the macrostructure of the composite at all studied positions. Results are implemented in a second finite element computation as a collection of orthotropic material models composing the heterogeneous structure of the composite.