Quasi-Static and High Strain Rate Compressive Response of Injection-Molded Cenosphere/HDPE Syntactic Foam

B. R. Bharath Kumar, Ashish Kumar Singh, Mrityunjay Doddamani, Dung D. Luong, Nikhil Gupta

Research output: Contribution to journalArticle

Abstract

High strain rate compressive properties of high-density polyethylene (HDPE) matrix syntactic foams containing cenosphere filler are investigated. Thermoplastic matrix syntactic foams have not been studied extensively for high strain rate deformation response despite interest in them for lightweight underwater vehicle structures and consumer products. Quasi-static compression tests are conducted at 10−4 s−1, 10−3 s−1 and 10−2 s−1 strain rates. Further, a split-Hopkinson pressure bar is utilized for characterizing syntactic foams for high strain rate compression. The compressive strength of syntactic foams is higher than that of HDPE resin at the same strain rate. Yield strength shows an increasing trend with strain rate. The average yield strength values at high strain rates are almost twice the values obtained at 10−4 s−1 for HDPE resin and syntactic foams. Theoretical models are used to estimate the effectiveness of cenospheres in reinforcing syntactic foams.

Original languageEnglish (US)
Pages (from-to)1-11
Number of pages11
JournalJOM
DOIs
StateAccepted/In press - Apr 11 2016

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Polyethylene
Syntactics
High density polyethylenes
Foams
Strain rate
Yield stress
Resins
Consumer products
Thermoplastics
Compressive strength
Fillers
Compaction

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)

Cite this

Quasi-Static and High Strain Rate Compressive Response of Injection-Molded Cenosphere/HDPE Syntactic Foam. / Bharath Kumar, B. R.; Singh, Ashish Kumar; Doddamani, Mrityunjay; Luong, Dung D.; Gupta, Nikhil.

In: JOM, 11.04.2016, p. 1-11.

Research output: Contribution to journalArticle

Bharath Kumar, B. R. ; Singh, Ashish Kumar ; Doddamani, Mrityunjay ; Luong, Dung D. ; Gupta, Nikhil. / Quasi-Static and High Strain Rate Compressive Response of Injection-Molded Cenosphere/HDPE Syntactic Foam. In: JOM. 2016 ; pp. 1-11.
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