Compressive behavior of fly ash based 3D printed syntactic foam composite
| Autor: | Mrityunjay Doddamani, B.R. Bharath Kumar, Balu Patil |
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| Rok vydání: | 2019 |
| Předmět: |
Specific modulus
Materials science Syntactic foam Mechanical Engineering 02 engineering and technology Strain rate 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Compressive strength Mechanics of Materials Cenosphere Fly ash General Materials Science High-density polyethylene Composite material 0210 nano-technology Porosity |
| Zdroj: | Materials Letters. 254:246-249 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2019.07.080 |
| Popis: | Syntactic foams are widely used in damage tolerance and low-density applications. In present work compressive behavior of 3D printed three-phase syntactic foams under quasi-static strain rates (0.001, 0.01 and 0.1 s−1) are investigated. Extruded filaments of High density polyethylene (HDPE) with environmentally pollutant fly ash cenospheres (0, 20, 40 and 60 vol%) are used for 3D printing. Micrography reveal that syntactic foam filament and 3D printed samples are three phase systems comprising matrix, cenosphere and porosity. Matrix porosity of about 7% makes these foams lightweight and suitable for buoyant applications. The compressive properties are extracted from the stress-strain plots. It is observed that modulus and specific modulus increases with strain rate and cenosphere content. Specific compressive strength increases with strain rate and decrease with cenosphere content. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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