Characterisation of natural fibre composites using X-ray computer tomography aided engineering

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dc.contributor.authorIversen, Marcus
dc.contributor.authorÅrmann, Anton
dc.contributor.departmentChalmers tekniska högskola / Institutionen för industri- och materialvetenskapsv
dc.contributor.departmentChalmers University of Technology / Department of Industrial and Materials Scienceen
dc.contributor.examinerAsp, Leif
dc.contributor.supervisorGutkin, Renaud
dc.date.accessioned2023-06-08T13:47:46Z
dc.date.available2023-06-08T13:47:46Z
dc.date.issued2023
dc.date.submitted2023
dc.description.abstractThe incorporation of bio-based materials and biocomposites is a crucial component in the pursuit of climate neutrality. Volvo Cars has set a target to achieve climate neutrality by 2040, leading to a growing interest in the application of bio-based materials and biocomposites. This has stimulated research in the field of mechanical behaviour and modelling, using Computer Aided Engineering (CAE) tools. Today there is a lack of Finite Element (FE) and material models for biocomposites, in particular those made of natural fibres as they display a complex microstructure. Throughout the project three kenaf fibre reinforced composite samples are analysed and characterised. The complex microstructure is obtained from Computer Tomography (CT) scanning, which is a non-destructive method. X-ray computer tomography Aided Engineering (XAE) is used to characterise the nonlinear behaviour of natural fibre composites by creating a FE-model. The FE-model is used in a virtual tensile test and compared against a physical test to calibrate the material properties of the samples. FE-simulations of natural fibre composites based on detailed information of their microstructure lacks in the litterature. To the best of our knowledge, conducting it at the coupon level has not been attempted in research until this day. The results shows that the characterisation of the microstructure using CT-scanning is successful. Furthermore, the result shows that the XAE process, going from image data to creating a mesh and running a quasi-static FE analysis, is applicable to a natural fibre composite. Thereafter, virtual tests are correlated against the mechanical tests and the material calibration successfully captures the initial stiffness, the non-linearity and the peak load of the samples. Further, the response for different areal weights are successfully predicted using the calibrated mechanical properties
dc.identifier.coursecodeIMSX30
dc.identifier.urihttp://hdl.handle.net/20.500.12380/306139
dc.language.isoeng
dc.setspec.uppsokTechnology
dc.subjectNatural fibre reinforced composite
dc.subjectComputer tomography
dc.subjectFinite element,
dc.subjectMaterial characterisation
dc.subjectCorrelation
dc.subjectVirtual testing
dc.subjectXAE
dc.subjectLS-DYNA
dc.subjectRETOMO
dc.subjectKenaf
dc.titleCharacterisation of natural fibre composites using X-ray computer tomography aided engineering
dc.type.degreeExamensarbete för masterexamensv
dc.type.degreeMaster's Thesisen
dc.type.uppsokH
local.programmeStructural engineering and building technology (MPSEB), MSc
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