Reusable polymer optics fiber strain sensor with memory capability based on ABS crazing
| Autor: | Cabral, Thiago Destri, 1990, Silva, Luiz Evaristo da, 1996, Fujiwara, Eric, 1985, Cordeiro, Cristiano Monteiro de Barros, 1973 |
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| Přispěvatelé: | UNIVERSIDADE ESTADUAL DE CAMPINAS |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Repositório da Produção Científica e Intelectual da Unicamp Universidade Estadual de Campinas (UNICAMP) instacron:UNICAMP |
| Popis: | Agradecimentos: FAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO (2017/25666-2, 2018/10409-7); CNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior; Australian Research Council (CE140100003); Australian National Fabrication Facility Abstract: A reusable memory capable polymer optical fiber (POF) strain sensor is reported. The fiber consists of an acrylonitrite butadiene styrene (ABS) core and polymethylmethacrylate cladding. The memory capability is derived from stress whitening due to crazing of the ABS core, which can be reversed by heating the fiber close to the ABS glass transition temperature. The probe was characterized under transverse compressive load, macrobending, and tensile loading. Testing shows that the optical properties of the fiber can be reversed to near pristine ABS conditions after thermal recovery and that the POF can be used on the accurate assessment of indentation, flexural and tensile loading, static or cyclical, even after removal of the load. The reusability of the proposed sensor combined with a deeper understanding of the memory mechanisms in POFs are of great interest for the development of new large-strain sensors for modern applications FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES Fechado |
| Databáze: | OpenAIRE |
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