On the Compressive Response of Polymeric Cellular Materials
| Autor: | Lorenzo Iannucci, Stefano Del Rosso |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
02 engineering and technology foams dynamic compression tests 010402 general chemistry 01 natural sciences lcsh:Technology 09 Engineering Article law.invention law Light-gas gun General Materials Science Composite material lcsh:Microscopy lcsh:QC120-168.85 chemistry.chemical_classification Universal testing machine Strain (chemistry) lcsh:QH201-278.5 lcsh:T Polymer 3D printing 021001 nanoscience & nanotechnology Compression (physics) Finite element method 0104 chemical sciences Compressive strength chemistry Dynamic loading lcsh:TA1-2040 lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) 03 Chemical Sciences lcsh:TK1-9971 |
| Zdroj: | Materials Materials, Vol 13, Iss 2, p 457 (2020) Materials; Volume 13; Issue 2; Pages: 457 |
| ISSN: | 1996-1944 |
| Popis: | This paper presents a series of compression tests performed on a variety of high performance lightweight cellular materials conventionally used in energy absorption applications. Compressive tests were performed over a range of strain rates with a universal testing machine and a single stage gas gun. Experimental results revealed a dependency of the mechanical properties on the polymeric precursor, density, infill topology and strain rates. The dynamic strength of the investigated materials was determined through a material parameter identification study via the finite element (FE) method. Numerical results matched well with the experimental results and revealed a substantial enhancement in the compressive strength of the tested material from quasi-static to dynamic loading regimes by as much as 87%. The strength of 3D printed polymers was superior with respect to the tested polymeric foams. On the other hand, polymeric foams showed higher efficiency and energy absorption ability. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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