TY - JOUR
T1 - Additive Manufacturing of Syntactic Foams
T2 - Part 2: Specimen Printing and Mechanical Property Characterization
AU - Singh, Ashish Kumar
AU - Saltonstall, Brooks
AU - Patil, Balu
AU - Hoffmann, Niklas
AU - Doddamani, Mrityunjay
AU - Gupta, Nikhil
PY - 2018/1/16
Y1 - 2018/1/16
N2 - High-density polyethylene (HDPE) and its fly ash cenosphere-filled syntactic foam filaments have been recently developed. These filaments are used for three-dimensional (3D) printing using a commercial printer. The developed syntactic foam filament (HDPE40) contains 40 wt.% cenospheres in the HDPE matrix. Printing parameters for HDPE and HDPE40 were optimized for use in widely available commercial printers, and specimens were three-dimensionally (3D) printed for tensile testing at strain rate of 10−3 s−1. Process optimization resulted in smooth operation of the 3D printer without nozzle clogging or cenosphere fracture during the printing process. Characterization results revealed that the tensile modulus values of 3D-printed HDPE and HDPE40 specimens were higher than those of injection-molded specimens, while the tensile strength was comparable, but the fracture strain and density were lower.
AB - High-density polyethylene (HDPE) and its fly ash cenosphere-filled syntactic foam filaments have been recently developed. These filaments are used for three-dimensional (3D) printing using a commercial printer. The developed syntactic foam filament (HDPE40) contains 40 wt.% cenospheres in the HDPE matrix. Printing parameters for HDPE and HDPE40 were optimized for use in widely available commercial printers, and specimens were three-dimensionally (3D) printed for tensile testing at strain rate of 10−3 s−1. Process optimization resulted in smooth operation of the 3D printer without nozzle clogging or cenosphere fracture during the printing process. Characterization results revealed that the tensile modulus values of 3D-printed HDPE and HDPE40 specimens were higher than those of injection-molded specimens, while the tensile strength was comparable, but the fracture strain and density were lower.
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U2 - 10.1007/s11837-017-2731-x
DO - 10.1007/s11837-017-2731-x
M3 - Article
AN - SCOPUS:85040596977
VL - 70
SP - 1
EP - 5
JO - JOM
JF - JOM
SN - 1047-4838
IS - 3
ER -