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Title: Analysis of mechanical properties of woven textile composites as a function of textile geometry
Author: Ruijter, Wout
ISNI:       0000 0004 2685 1663
Awarding Body: University of Nottingham
Current Institution: University of Nottingham
Date of Award: 2009
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The topic of this thesis is mesoscale mechanics analysis of textile composites. The need for such analysis originates from the need to accurately predict structural performance of textile composite structures, which is known to vary as a function of textile geometry parameters. Because of textile composites' suitability for use in large deformation forming methods, modelling of yarn geometries and their deformation mechanisms have seen much developments in recent years, in particular, the development of dedicated CAD modelling tools like TexGen. The work in this thesis was started to devise automatic mechanics modelling of textile composite geometries, which was achieved by avoiding the generation of a mesh that follows yarn boundaries and instead assigns properties to integration points using textile querying implemented in TexGen. The conceptual advantage is that in such a method any additional effects (like prestress, initial damage or voids) can be added without adding geometric complexity. The effect of spatial averaging on the convergence of relevant outputs is analysed and a case study on a simple plain weave textile is presented. Good correlation of experimental and modelled strength was found and parametric studies on the textile geometry show that the range of strengths found in tests could be explained by the effects of geometric variables. More importantly, a practical automatic link between TexGen and FE analysis is implemented and demonstrated to work.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: TA Engineering (General). Civil engineering (General)