On anisotropy, strain rate and size effects in vat photopolymerization based specimens
| Autor: | Dayakar L. Naik, Ravi Kiran |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0209 industrial biotechnology
Materials science Scanning electron microscope Biomedical Engineering Modulus Stiffness 02 engineering and technology Strain rate 021001 nanoscience & nanotechnology Industrial and Manufacturing Engineering 020901 industrial engineering & automation Photopolymer Ultimate tensile strength medicine Fracture (geology) General Materials Science Composite material medicine.symptom 0210 nano-technology Anisotropy Engineering (miscellaneous) |
| Zdroj: | Additive Manufacturing. 23:181-196 |
| ISSN: | 2214-8604 |
| DOI: | 10.1016/j.addma.2018.08.021 |
| Popis: | The influence of build orientation, layer thickness, strain rate and size effect on the Young’s modulus, ultimate tensile strength and fracture strains in vat photopolymerization based additively manufactured specimens is investigated. Mechanical testing and subsequent scanning electron microscopy tests on additively manufactured specimens are conducted. Anisotropy in mechanical behavior is only observed in specimens fabricated in different planes. An increase in layer thickness and decrease in strain rate resulted in lower strength, stiffness and higher fracture strains. No significant size effect on strength and failure strains is observed. Cure kinetics is found to have significant influence on mechanical properties of additively manufactured specimens. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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