A design algorithm to model fibre paths for manufacturing of structurally optimised composite laminates
TLDR
This work develops a design for manufacturing (DFM) tool for the introduction in design of the manufacturing requirements and limitations derived from the fibre placement technology, which enables the automatic generation of continuous fibre paths for manufacturing.About:
This article is published in Composite Structures.The article was published on 2018-11-15 and is currently open access. It has received 14 citations till now. The article focuses on the topics: Design for manufacturability & Composite laminates.read more
Figures
Figure 9. Flat square plate with a hole: reference paths optimised for structures and paths optimised for manufacturing with gap and overlap analysis for each ply (green: gap and blue: overlap) 
Figure 2. Curve smoothing approach to comply with minimum turning radius constraint 
Table 2. Analysis of results of ply 4 of flat square plate with a hole showing angle deviations, gaps and overlaps, and tow-drops that would be needed to remove the overlaps 
Table 3. Analysis of results for the design of reference (Ref) and manufacturing (Mfg) fibre paths of windshield front fairing Case study Windshield front fairing Ply orientation (deg) 0 45 90 Description Ref. 
Figure 1. Approach for fibre path modelling for manufacturing, including for each step (boxes): input and output variables (left and right side of boxes), conditions and constraints applicable (in bold at top side of boxes), and enablers and algorithms used (in italic at bottom side of boxes). 
Figure 3. (a) Case study used and representation of modelled curves; (b) graph of the effect of refinement of interpolation on computation time; (c) graph of the effect of refinement on average angle deviation
Citations
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Journal ArticleDOI
3D printing of optimized composites with variable fiber volume fraction and stiffness using continuous fiber
Kentaro Sugiyama,Ryosuke Matsuzaki,Andrei V. Malakhov,Alexander N. Polilov,Masahito Ueda,Akira Todoroki,Yoshiyasu Hirano +6 more
TL;DR: In this article, the authors optimized the curved fiber trajectories to realize variable fiber volume fraction and stiffness composites (VVfSC) using a continuous fiber composite 3D printer.
Journal ArticleDOI
Manufacturing-Induced Imperfections in Composite Parts Manufactured via Automated Fiber Placement
Falk Heinecke,Christian Willberg +1 more
TL;DR: The state of the art in modelling gaps and overlaps and assessing their influence on mechanical properties is presented and the research gaps and remaining issues are identified.
Journal ArticleDOI
An efficient semi-analytical framework to tailor snap-through loads in bistable variable stiffness laminates
TL;DR: In this paper, a semi-analytical model was proposed to compute the snap-through forces of bistable variable stiffness (VS) laminates with curvilinear fiber paths.
Journal ArticleDOI
Manufacturable insight into modelling and design considerations in fibre-steered composite laminates: state of the art and perspective
TL;DR: In this article, the authors summarize and discuss underlying fiber placement technologies including tailored fiber placement (TFP), continuous tow shearing (CTS), and automated fibre placement (AFP), followed by a detailed discussion on the manufacturing limitations and constraints of the AFP process.
Journal ArticleDOI
Optimization of variable stiffness laminates with gap-overlap and curvature constraints
TL;DR: In this paper, the gap-overlap and curvature constraints on fiber tows are considered in the design optimization of variable stiffness laminates, and the problem of compliance minimization with manufacturability constraints is solved with the MMA optimization algorithm.
References
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Damage and Failure of Non-Conventional Composite Laminates
TL;DR: In this article, the structural behavior of non-conventional composite laminates is not fully understood yet, particularly their damage and failure responses, and the goal of this paper is to shed light on this field.
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Maximizing the Fundamental Frequency of Laminated Composite Plates with Optimally Shaped Curvilinear Fibers
TL;DR: In this article, a new design method was proposed to maximize the fundamental frequency of laminated composite plates reinforced by curvilinear fibers, and the optimal curviline shapes were searched for the maximum fundamental frequencies using a genetic algorithm, and increments of data points which define the spline shape were used as design variables under a limited range of undulation.
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Curvilinear fiber optimization tools for design thin walled beams
TL;DR: In this paper, an investigation of the possible performance improvements of thin walled composite beams through the use of the variable stiffness concept with curvilinear fiber is presented, where the beams are constructed from a single-cell closed cross cross section and a number of non-classical effects such as material anisotropy, transverse shear, warping inhibition and non-uniform torsional model are considered in the beam model.
Journal ArticleDOI
Geometrically non-linear periodic forced vibrations of imperfect laminates with curved fibres by the shooting method
Hamed Akhavan,Pedro Ribeiro +1 more
TL;DR: In this article, the authors studied the effect of geometric imperfections on the vibrational behavior of composite laminates excited by a harmonic force and determined the stability of the periodic solutions by applying Floquet's theory.
Journal ArticleDOI
Parametric instabilities of variable angle tow composite laminate under axial compression
TL;DR: In this article, the dynamic instability of a variable angle tow (VAT) composite plate subjected to periodic in-plane compressive load is investigated using finite element analysis, and the effect of fiber angle orientation on the instability behavior of VAT laminates is studied.