Open AccessEffect of Foam’s Heterogeneity on the Behaviour of Sandwich Panels
Author(s) -
Monika Chuda-Kowalska
Publication year - 2019
Publication title -
civil and environmental engineering reports
Language(s) - English
Resource type - Journals
eISSN - 2450-8594
pISSN - 2080-5187
DOI - 10.2478/ceer-2019-0047
Subject(s) - digital image correlation , structural engineering , ultimate tensile strength , bending , sandwich structured composite , materials science , compression (physics) , syntactic foam , metal foam , composite material , core (optical fiber) , engineering , porosity
This study aimed to develop a knowledge about material parameters identification of the foam core and numerical modelling of the sandwich panels to accurately predict the behaviour of this kind of structures. The polyisocyanurate foam (PIR) with low density used in sandwich panels dedicated to civil engineering is examined in the paper. A series of experiments (tensile, compression and bending tests) were carried out to identify its mechanical parameters. To determine the heterogeneity of analysed foam a Digital Image Correlation (DIC) technique, named Aramis, is applied in the paper. The results obtained from FE analyses are compared with the experimental results on full-size plates carried out by the author and proper conclusions are drawn.