Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Jonathan E. Seppala"'
Publikováno v:
Materials, Vol 13, Iss 19, p 4414 (2020)
It is widely known that the printing quality of fused filament fabrication (FFF) is heavily affected by environmental temperature and humidity, taking the form of warping and porosity. However, there is little understanding about the quantitative rel
Externí odkaz:
https://doaj.org/article/e87054eaaa074ef097d27da1670ff36c
Publikováno v:
Journal of Applied Mechanics. 90
The tear test is widely used to measure the fracture toughness of thin rubber sheets and polymer films. More recently, the tear test has been applied to polymer materials produced by melt extrusion additive manufacturing to measure the fracture tough
Publikováno v:
JOM. 74:1274-1276
Publikováno v:
ACS applied materialsinterfaces. 14(28)
Embedded 3D printing enables the manufacture of soft, intricate structures. In the technique, a nozzle is embedded into a viscoelastic support bath and extrudes filaments or droplets. While embedded 3D printing expands the printable materials space t
Autor:
Angela R. Hight Walker, Jonathan E. Seppala, Anthony P. Kotula, Nora M. Hassan, Kalman B. Migler
Publikováno v:
MRS Communications. 11:157-167
Polymer chain orientation is crucial to understanding the polymer dynamics at interfaces formed during thermoplastic material extrusion additive manufacturing. The flow field and rapid cooling produced during material extrusion can result in chains w
Autor:
Leanne Friedrich, Jonathan E. Seppala
Publikováno v:
Soft Matter
Embedded 3D printing, wherein fluid inks are extruded into support baths, has enabled the manufacture of complex, custom structures ranging from cell-laden tissue analogues to soft robots. This method encompasses two techniques: embedded ink writing
Autor:
Jeffrey R. Westrich, Christopher M. Shumeyko, Sara V. Orski, Edward J. Garboczi, Kalman D. Migler, Jonathan E. Seppala, Jeffrey L. Gair, Daniel P. Cole, Todd C. Henry, Frank Gardea
Publikováno v:
Integrating Materials and Manufacturing Innovation. 9:358-375
Material extrusion (MatEx) is finding increasing applications in additive manufacturing of thermoplastics due to the ease of use and the ability to process disparate polymers. Since part strength is anisotropic and frequently deviates negatively with
Publikováno v:
Integrating Materials and Manufacturing Innovation. 8:335-361
Laser sintering (LS) of polyamide 12 (PA12) is increasingly being adopted for industrial production of end-use parts, yet the complexity of this process coupled with the lack of organized, rigorous, publicly available process-structure-physical prope
Publikováno v:
Physics of Fluids. 34:083112
Extrusion-based bioprinting is a powerful tool for fabricating complex cell-laden constructs. Embedded ink writing (EIW) is an extrusion-based printing technique wherein a nozzle embedded into a support bath writes continuous filaments. Because it al
Publikováno v:
OSA Contin
Additive manufacturing methods based on photopolymerization offer a promising potential for fabrication of high quality, highly transparent optical components. One use of these technologies involves fabrication of parts for very specific and narrow a