Effect of Harsh Environmental Conditions on the Impact Response of Carbon Composites with Filled Matrix by Cork Powder
| Autor: | Paulo N.B. Reis, Paulo F. Santos, M. P. Silva, J.M. Parente, S. Valvez |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Materials science QH301-705.5 QC1-999 Perforation (oil well) Composite number Context (language use) Cork engineering.material Experimental tests Low velocity impact General Materials Science Biology (General) Composite material Composite laminates QD1-999 Instrumentation hostile solutions Fluid Flow and Transfer Processes Physics Process Chemistry and Technology General Engineering composite laminates experimental tests Epoxy Engineering (General). Civil engineering (General) Computer Science Applications Chemistry Hostile solutions visual_art engineering visual_art.visual_art_medium Degradation (geology) Seawater low velocity impact TA1-2040 |
| Zdroj: | Applied Sciences Volume 11 Issue 16 Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP Applied Sciences, Vol 11, Iss 7436, p 7436 (2021) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11167436 |
| Popis: | Composites are used in a wide range of engineering applications, as a result, exposure to hostile environments is rather common and its mechanical properties degradation is unavoidable. It is necessary to have a complete understanding of the impact of hostile environments on mechanical performance, namely critical solicitations as low velocity impacts. Therefore, this work intends to analyse the low velocity impact response of a carbon fibre/epoxy composite, and a similar architecture with an epoxy matrix filled with cork, after immersion into different solutions: diesel, H2SO4, HCl, NaOH, distilled water, seawater, and seawater at 60 °C. These solutions significantly affected the impact properties. In this context, the maximum load, maximum displacement, and restored energy behaviour were studied to understand the influence of exposure time. It was possible to conclude that such impact parameters were significantly affected by the solutions, where the exposure time proved to be determinant. The benefits of cork on the perforation threshold were investigated, and this parameter increased when the epoxy matrix was filled with cork. Finally, cork filled epoxy laminates also show less variation in maximum load and recovered energy than carbon/epoxy laminates. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. |
| Databáze: | OpenAIRE |
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