Open AccessFire - mechanical behaviour of sandwich composite beam
Author(s) -
Le Luan
Publication year - 2020
Publication title -
tạp chí khoa học và công nghệ
Language(s) - English
Resource type - Journals
ISSN - 1859-1531
DOI - 10.31130/jst-ud2020-228e
Subject(s) - materials science , composite number , fire resistance , combustion , composite material , sandwich structured composite , finite element method , degradation (telecommunications) , thermal , beam (structure) , structural engineering , engineering , chemistry , telecommunications , physics , organic chemistry , meteorology
We have analyzed the fire-mechanical behaviour of sandwich composite materials used in marine applications, as a function of the combustion time. In this light, sandwich beam samples are analyzed in terms of fire resistance kinetic and of post-combustion mechanical strength. We have shown that the materials undergo a strong degradation during 100 s of fire exposure at 750 ° C and this degradation is linked to the top skin. Finally, a finite element modelling work is being developed to predict the thermal behavior of composite sandwich materials; this modelling must include all thermal, physical and chemical degradation processes in order to realistically report resistance of materials in extreme temperature environment.