Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/44170
Título: | Development, characterization and analysis of auxetic structures from braided composites and study the influence of material and structural parameters |
Autor(es): | Magalhães, Rui Pichandi, Subramani Lisner, Tomas Rana, Sohel Ghiassi, Bahman Fangueiro, Raúl Oliveira, Daniel V. Lourenço, Paulo B. |
Palavras-chave: | Mechanical properties Analytical modelling Mechanical testing Braiding B. Mechanical properties C. Analytical modelling D. Mechanical testing E. Braiding |
Data: | 2016 |
Editora: | Elsevier |
Revista: | Journal Composites Part A: Applied Science and Manufacturing |
Resumo(s): | Auxetic materials are gaining special interest in technical sectors due to their attractive mechanical behaviour. This paper reports a systematic investigation on missing rib design based auxetic structures produced from braided composites for civil engineering applications. The influence of various structural and material parameters on auxetic and mechanical properties was thoroughly investigated. The basic structures were also modified with straight longitudinal rods to enhance their strengthening potential in structural elements. Additionally, a new analytical model was proposed to predict Poisson’s ratio through a semi empirical approach. Auxetic and tensile behaviours were also predicted using finite element analysis. The auxetic and tensile behaviours were observed to be more strongly dependent on their structural parameters than the material parameters. The developed analytical models could well predict the auxetic behaviour of these structures except at very low or high strains. Good agreement was also observed between the experimental results and numerical analysis. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/44170 |
DOI: | 10.1016/j.compositesa.2016.04.020 |
ISSN: | 1359-835X |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | DET/2C2T - Artigos em revistas internacionais com arbitragem científica ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
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3_2016 Development characterization and analysis of auxetic structures from braided composites and study the influence of material and structural parameters.pdf | 909,2 kB | Adobe PDF | Ver/Abrir |