Load-dependent path planning method for 3D printing of continuous fiber reinforced plastics

Wang, Ting; Li, Nanya; Link, Guido; Jelonnek, J.; Fleischer, Jürgen; Dittus, Jörg; Kupzik, Daniel

doi:10.1016/j.compositesa.2020.106181

Cited by 65 publications

(41 citation statements)

References 33 publications

(26 reference statements)

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“…Fused filament fabrication (FFF) is one of the most widely used technologies in 3D printing thanks to its simplicity and cost effectiveness compared to other printing machines 1 . Historically, the FFF has been targeted towards conceptual modeling prototypes 2,3 .…”

Section: Introductionmentioning

confidence: 99%

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Experimental optimization of process parameters on mechanical properties and the layers adhesion of 3D printed parts

Ali

Khlif

Hammami

et al. 2021

J of Applied Polymer Sci

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Additive manufacturing by fused filament fabrication provides an innovative manufacturing process for new design vision and complex geometry components. This study aims to establish the relationships between the process parameters and the mechanical properties of 3D printed parts using Taguchi design of experiment. The proposed method also enables the study of the filling orientation effects on the cohesion of the printed layers and the overall fracture behavior. We reviewed and optimized the effects of the critical parameters of process such as the layer thickness, the temperature, the print speed, and the filling orientation on Young's modulus and tensile strength. Then the effect of raster angle on the cohesion between the printed layers, as well as the failure modes were analyzed. The results show that the layer thickness and the filling angle are more influential on the mechanical properties. An analysis of the fracture surfaces of tensile specimens was also performed and it indicated a fracture following the filling direction. Furthermore, the fill angle 0/90° shows the best adhesion between the printed layers.

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Section: Introductionmentioning

confidence: 99%

“…Once the entire layer has been deposited, the nozzle moves along the Z ‐axis to allow the construction of the next layer. This process is repeated until the object is completed 1 …”

Section: Introductionmentioning

confidence: 99%

Experimental optimization of process parameters on mechanical properties and the layers adhesion of 3D printed parts

Ali

Khlif

Hammami

et al. 2021

J of Applied Polymer Sci

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“…Nevertheless, the fiber print paths generated by these three infill patterns have their own defects. Later, a load-dependent 3D print path planning method [62] was proposed to resolve the above issues. Li et al [63] proposed a path-designed 3D printing method to manufacture the complex FRC structures considering the anisotropic property and load transmission path of the fiber.…”

Section: Multi-scale Concurrent Topology Optimizationmentioning

confidence: 99%

A review on the topology optimization of the fiber-reinforced composite structures

2021

aktt

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According to the requirements of the aerospace industry for high strength, high stiffness, and lightweight structural parts, topology optimization has been proved to be an effective product design method. As one of the most conceptual and prospective structural optimization design methods, topology optimization intends to seek the optimal layout of materials in an allowed design region under a given load and boundary conditions. Thus, the object of study in the article is the method of topological optimization of aircraft structures. The goal of this article is to analyze the existing approaches, algorithms, as well as application of the method of topological optimization in the aerospace field in applied problems. The tasks are to describe the existing various approaches methods, features, and research directions of topological optimization as well as to study the possibility of application in the manufacturing process of composite structures. The following results were obtained. The optimization methods are briefly explained and compared, and the advantages and limitations of each approach are discussed. The various ways of simultaneous optimization of fiber orientation and structural topology were described and analyzed. The features of different methods of continuous fiber orientation optimization method were reviewed. The discrete fiber orientation optimization methods were represented. The possibility of multi-scale concurrent topological optimization was described. The combination of topology optimization and additive manufacturing was considered. Finally, the topology optimization of FRC structures which have been resolved in literature are reviewed and the potential research fields requiring more investigation are pointed out. Conclusions. In the article, a comprehensive review of the topology optimization design of FRC structures was presented. The promising way is to combine topology optimization with additive manufacturing techniques. However, these proposed methods may not suitable for other more complex problems, such as bucking stability and natural frequency. Hence, the topology optimization design of complex FRC components under complicated conditions is the main challenge in the future. This can be a new trend in the topology design of FRC structures.

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“…The main reason for this is that the design variable of fiber orientation easily falls into local optima. In [15], a new load-dependent path planning approach was proposed to generate the 3D-printing path of continuous fiber-reinforced plastics. A topological optimization method called Solid Orthotropic Material with Penalization (SOMP) [16] was used to optimize the fiber angle and structure topology simultaneously.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Development of a topology optimization method for the design of composite lattice ring structures

Vambol

Sun

et al. 2021

EEJET

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Composite lattice ring structures are known for their lightweight and high efficiency, which have a strong attraction in the aeronautical and aerospace industries. The general manufacturing process for such structures is to use wet filament winding technology. Due to the anisotropic properties of continuous fibers, the filament winding trajectory determines the mechanical properties of the composite lattice ring structures. In this work, a topology optimization method is proposed to generate the efficient filament winding trajectory, which follows the load transfer path of the composite part and can offer higher mechanical strengths. To satisfy the periodicity requirement of the structure, the design space is divided into a prescribed number of identical substructures during the topology optimization process. In order to verify the effectiveness and capability of the proposed approach, the topological design of ring structures with the different number of substructures, the ratio of outer to inner radius and the loading case is investigated. The results reflect that the optimal topology shape strongly depends on the substructure numbers, radius ratio and loading case. Moreover, the compliance of the optimized structures increases with the total number of substructures, while the structural efficiency of the optimized structures decreases with the radius ratio. Finally, taking the specified topological structure as the object, the conceptual design of a robotic filament winding system for manufacturing the composite lattice ring structure is presented. In particular, the forming tooling, integrated deposition system, winding trajectory and manufacturing process are carefully defined, which can provide valuable references for practical production in the future

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Load-dependent path planning method for 3D printing of continuous fiber reinforced plastics

Cited by 65 publications

References 33 publications

Experimental optimization of process parameters on mechanical properties and the layers adhesion of 3D printed parts

Experimental optimization of process parameters on mechanical properties and the layers adhesion of 3D printed parts

A review on the topology optimization of the fiber-reinforced composite structures

Development of a topology optimization method for the design of composite lattice ring structures

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