Additive Manufacturing of Syntactic Foams

Part 2: Specimen Printing and Mechanical Property Characterization

Ashish Kumar Singh, Brooks Saltonstall, Balu Patil, Niklas Hoffmann, Mrityunjay Doddamani, Nikhil Gupta

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Pages (from-to)1-5
Number of pages5
JournalJOM
DOIs
StateAccepted/In press - Jan 16 2018

Fingerprint

3D printers
Printing properties
Polyethylene
Syntactics
High density polyethylenes
Foams
Printing
Mechanical properties
Coal Ash
Tensile testing
Fly ash
Strain rate
Nozzles
Tensile strength
Elastic moduli

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

Additive Manufacturing of Syntactic Foams : Part 2: Specimen Printing and Mechanical Property Characterization. / Singh, Ashish Kumar; Saltonstall, Brooks; Patil, Balu; Hoffmann, Niklas; Doddamani, Mrityunjay; Gupta, Nikhil.

In: JOM, 16.01.2018, p. 1-5.

Research output: Contribution to journalArticle

Singh, Ashish Kumar ; Saltonstall, Brooks ; Patil, Balu ; Hoffmann, Niklas ; Doddamani, Mrityunjay ; Gupta, Nikhil. / Additive Manufacturing of Syntactic Foams : Part 2: Specimen Printing and Mechanical Property Characterization. In: JOM. 2018 ; pp. 1-5.
@article{fc8cf40c8bd84dc5ad8b48fec5268e38,
title = "Additive Manufacturing of Syntactic Foams: Part 2: Specimen Printing and Mechanical Property Characterization",
abstract = "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.",
author = "Singh, {Ashish Kumar} and Brooks Saltonstall and Balu Patil and Niklas Hoffmann and Mrityunjay Doddamani and Nikhil Gupta",
year = "2018",
month = "1",
day = "16",
doi = "10.1007/s11837-017-2731-x",
language = "English (US)",
pages = "1--5",
journal = "JOM",
issn = "1047-4838",
publisher = "Minerals, Metals and Materials Society",

}

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.

UR - http://www.scopus.com/inward/record.url?scp=85040596977&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85040596977&partnerID=8YFLogxK

U2 - 10.1007/s11837-017-2731-x

DO - 10.1007/s11837-017-2731-x

M3 - Article

SP - 1

EP - 5

JO - JOM

JF - JOM

SN - 1047-4838

ER -