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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Journal ArticleDOI
A review on design for manufacture of variable stiffness composite laminates
Gustavo Gonzalez Lozano,Gustavo Gonzalez Lozano,Ashutosh Tiwari,Christopher Turner,Simon Astwood +4 more
TL;DR: A review of the state-of-the-art on design for variable stiffness laminates can be found in this paper, where the authors highlight the current gaps and research needs, and present tools for analysis of the effect of manufacturing defects, manufacturing optimisation of gaps/overlaps or cycle time.
Proceedings ArticleDOI
Analysis of tow placed, parallel fiber, variable stiffness laminates
TL;DR: In this paper, the in-plane responses of shifted and parallel fiber variable stiffness laminates to applied uniform end shortening were determined, where subsequent paths are truly parallel to the reference fiber path.
Journal ArticleDOI
Generating realistic laminate fiber angle distributions for optimal variable stiffness laminates
TL;DR: In this paper, a two-step design approach is proposed to convert a known LP distribution for a variable stiffness (VS) composite laminate into a realistic design in terms of fiber angles, with minimum loss of structural performance, whilst satisfying a constraint on in-plane fiber angle curvature.
Journal ArticleDOI
On the design, manufacture and testing of trajectorial fibre steering for carbon fibre composite laminates
M.W. Tosh,Don Kelly +1 more
TL;DR: In this paper, the steering of composite tows within composite laminates has been investigated as a means of producing composite structures with increased strength, and a manufacturing technique for the steered plies has been proposed.
Journal ArticleDOI
On the effective integration of manufacturability constraints within the multi-scale methodology for designing variable angle-tow laminates
Marco Montemurro,Anita Catapano +1 more
TL;DR: In this article, a multi-scale two-level (MS2L) optimisation strategy for optimising VAT composites is presented, which integrates all types of requirements (mechanical, manufacturability, geometric, etc.) within the first level problem.