Mechanical Properties of PolyJet 3D-Printed Composites Inspired by Space-Filling Peano Curves

Wu, Changlang; Tho, Truong; Tran, Phuong

doi:10.3390/polym13203516

Cited by 13 publications

(6 citation statements)

References 56 publications

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“…The continuous paths were designed to reduce the nonprinting time and improve the surface quality; these paths were divided into the Hibbert curve [20], Peano curve [21], and hybrid continuous paths. However, an excessive number of path directions turning not only increased building time but also induced additional cumulative heat in some regions.…”

Section: Introductionmentioning

confidence: 99%

Path planning of complicated hierarchical thin-wall structures using multi-material additive manufacturing technology

Niu,

Luan,

Shen

et al. 2024

Funct. Compos. Struct.

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Multilayer thin-wall structures have demonstrated significant application potential in wearable devices, pressure vessels, and aerospace industries, with additive manufacturing poised to further unlock their capabilities. Although path planning, a crucial aspect of additive manufacturing, has been extensively studied for homogeneous structures, research on path planning for heterogeneous structures remains limited. This study introduces a novel path planning algorithm, termed CPCNHTS, for generating continuous paths in complex non-rotating bodies with hierarchical thin-walled structures. CPCNHTS encompasses adaptive slicing, path offset, and robotic postprocessing techniques. The adaptive slicing method is employed to enhance the slicing model's accuracy through volume error control. Moreover, the path offset method is designed to derive the printing path using a parallel curve of the inner contour. Identification of the inner contour is based on the curvatures and areas of single and double contours, respectively. The robotic postprocessing method is employed to convert the printing path into executable codes for multimaterial additive equipment.As a compelling application of the CPCNHTS algorithm, a limb prosthetic socket was successfully fabricated, highlighting the remarkable potential of this approach within the wearable devices domain.

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Section: Introductionmentioning

confidence: 99%

Path planning of complicated hierarchical thin-wall structures using multi-material additive manufacturing technology

Niu,

Luan,

Shen

et al. 2024

Funct. Compos. Struct.

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show abstract

“…Manufacturers prefer these techniques according to the dimensions of the applications to be made. Fused Deposition Modeling (FDM) [ 23 , 24 ], SLA [ 25 , 26 ], Polyjet [ 27 ], Selective Laser Sintering (SLS) [ 28 ], Inkjet Printing [ 29 ], Digital Light Processing (DLP) [ 30 ], and Two-Photon Polymerization (TPP) [ 31 , 32 ] are the most widely used 3D printing techniques today. In particular, TPP, SLA, and DLP techniques were found to be superior to other methods in the fabrication of micro and nano systems.…”

Section: Introductionmentioning

confidence: 99%

Additive Manufactured Strain Sensor Using Stereolithography Method with Photopolymer Material

et al. 2023

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As a result of the developments in additive manufacturing (AM) technology, 3D printing is transforming from a method used only in rapid prototyping to a technique used to produce large-scale equipment. This study presents the fabrication and experimental studies of a 3D-printed strain sensor that can be used directly in soft applications. Photopolymer-based conductive and flexible ultraviolet (UV) resin materials are used in the fabrication of the sensor. A Stereolithography (SLA)-based printer is preferred for 3D fabrication. The bottom base of the sensor, which consists of two parts, is produced from flexible UV resin, while the channels that should be conductive are produced from conductive UV resin. In total, a strain sensor with a thickness of 2 mm was produced. Experimental studies were carried out under loading and unloading conditions to observe the hysteresis effect of the sensor. The results showed a close linear relationship between the strain sensor and the measured resistance value. In addition, tensile test specimens were produced to observe the behavior of conductive and non-conductive materials. The tensile strength values obtained from the test results will provide information about the sensor placement. In addition, the flexible structure of the strain sensor will ensure its usability in many soft applications.

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“…This technology is operated by depositing liquid photopolymer layer-by-layer, subsequently cured with ultraviolet light [26,27]. Several aspects of this technology have been investigated, from dimensional accuracy and build orientations to printing capabilities [28][29][30][31][32]. While the parts performances have been reported in the literature, the findings mainly explore the tensile and compression behaviour [26,[32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

“…Several aspects of this technology have been investigated, from dimensional accuracy and build orientations to printing capabilities [28][29][30][31][32]. While the parts performances have been reported in the literature, the findings mainly explore the tensile and compression behaviour [26,[32][33][34][35][36][37]. The flexural behaviour of the acrylic photopolymer samples fabricated via material jetting is less explored.…”

Section: Introductionmentioning

confidence: 99%

Flexural properties of porcupine quill-inspired sandwich panels

2023

Self Cite

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This paper presents the bending behaviour of the porcupine quill and bioinspired Voronoi sandwich panels, aiming to explore the effect of geometry design on the bending performance of the inspired structures. Through the X-ray micro-computed tomography, the internal morphology of the quill is explored. The longitudinal cross-section of the porcupine quill revealed a functionally graded design in the foam structure. Based on this observation, Voronoi sandwich panels are designed by incorporating the Voronoi seed distribution strategy and gradient transition design configurations. Porcupine-inspired sandwich panels with various core designs are fabricated via material jetting technique and tested under three-point bending condition. Results show that the sample failed at the bottom face panels for uniform sandwich panels, whereas graded samples failed in the core panel. The bending behaviour developed via simulation software shows a good agreement with the experimental results. The parametric study provides insights into structural designs for engineering applications, particularly in the aerospace and automobile industries.

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Mechanical Properties of PolyJet 3D-Printed Composites Inspired by Space-Filling Peano Curves

Cited by 13 publications

References 56 publications

Path planning of complicated hierarchical thin-wall structures using multi-material additive manufacturing technology

Path planning of complicated hierarchical thin-wall structures using multi-material additive manufacturing technology

Additive Manufactured Strain Sensor Using Stereolithography Method with Photopolymer Material

Flexural properties of porcupine quill-inspired sandwich panels

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