Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/65188
Título: | Influence of service temperature on shear creep behaviour of a rigid low-density closed-cell PIR foam |
Autor(es): | Figueira, Diogo Sena-Cruz, José Pereira, Eduardo Valente, Isabel B. Barros, Joaquim A. O. Castro, Fernando Soares, Delfim |
Palavras-chave: | Polymeric foams Polyisocyanurate Shear creep Findley’s power law Polyisocyanurate (PIR) Temperature |
Data: | 2019 |
Editora: | Elsevier 1 |
Revista: | Construction and Building Materials |
Citação: | Figueira, D.; Sena-Cruz, J.; Pereira, E.; Valente, I.; Barros, J.; Castro, F.; Soares, D. (2019) “Influence of service temperature on shear creep behaviour of a rigid low-density closed-cell PIR foam” Construction & Building Materials, 225: 1052–1063. |
Resumo(s): | An experimental campaign was carried out to assess shear creep behaviour of a rigid low-density closed-cell polyisocyanurate (PIR) foam. Two service temperature values were considered, 20 ºC and 30 ºC, and the applied stresses ranged between 20% and 60% of the corresponding shear strength. The results showed that a stress amplitude of 30% was enough to cause nonlinear creep response. Furthermore, creep deformations were slightly smaller in the tests at 30 ºC, a fact that matched the viscoelastic response of the PIR foam obtained from DMA testing. Finally, creep prediction curves were calibrated through an analytical approach based on the Findley’s power law. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/65188 |
DOI: | 10.1016/j.conbuildmat.2019.07.337 |
ISSN: | 0950-0618 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CMEMS - Artigos em revistas internacionais/Papers in international journals ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Revised Manuscript R1_Repositorium.pdf | Final Draft | 1,84 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons