Characterization of 3D Printed Re-entrant Strips Using Shape Memory Thermoplastic Polyurethane with Various Infill Density

Jung, Imjoo

doi:10.5805/sfti.2022.24.6.812

Cited by 1 publication

(3 citation statements)

References 31 publications

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“…For manufacturing the midsole structure, the carbon black/TPU composite lament was used. In our previous research, this lament was con rmed the most suitable for 3D printed conductive structure 50 .…”

Section: Introductionmentioning

confidence: 80%

“…The diameter and density were 1.75 mm and 1.35 g/cm 3 . The speci c analysis of CB/TPU was proceeded in previous study 50 .…”

Section: Methodsmentioning

confidence: 99%

“…Auxetic structures among meta-structures are noteworthy for their negative poisson's ratio (NPR), which gives them unique mechanical characteristics. As a result, the arrangement, pattern, and repeating structure of a material play a crucial role in determining its physical properties [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] . Furthermore, in recent years, electronic footwear has a function of analyzing the user's health signal by integrating a sensor function.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of 3D Printed Re-entrant Midsole Structure with Various Infill Density and Print Direction

Jung,

Lee

2024

Preprint

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This study focused on manufacturing 3D printed conductive RE midsoles with two slicing directions (horizontal and vertical) and three infill densities. Optimal 3D printing conditions were assessed through analyses of slicing processes, morphology, compressive and electrical properties, electromechanical property, and plantar pressure analysis. The analysis of the RE midsole was further divided into three parts: Meta (MT), Midfoot (MF), and Heel (HL). As results, horizontal direction (HD) layers were stacked horizontally, while vertical direction (VD) layers were deposited vertically, with VD being 1.5 times more rigid than HD. For VD, rigidity decreased in the order of MF > HL > MT, while for HD, it was HL > MF > MT. Both slicing directions showed similar electrical properties, with conductivity improving with higher infill density. The 50% infill density demonstrated the best electrical and electromechanical properties. Plantar pressure analysis revealed that HD provided a wider pressure area and better pressure distribution. Overall, HD midsoles with 50% infill density exhibited softer compressive property and superior electrical property during compression, offering better stability by distributing plantar pressure more effectively.

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Section: Introductionmentioning

confidence: 80%

“…The diameter and density were 1.75 mm and 1.35 g/cm 3 . The speci c analysis of CB/TPU was proceeded in previous study 50 .…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Characterization of 3D Printed Re-entrant Midsole Structure with Various Infill Density and Print Direction

Jung,

Lee

2024

Preprint

View full text Add to dashboard Cite

show abstract

Characterization of 3D Printed Re-entrant Strips Using Shape Memory Thermoplastic Polyurethane with Various Infill Density

Cited by 1 publication

References 31 publications

Characterization of 3D Printed Re-entrant Midsole Structure with Various Infill Density and Print Direction

Characterization of 3D Printed Re-entrant Midsole Structure with Various Infill Density and Print Direction

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