SPATIAL PROPERTY CHARACTERISATION OF GFRP CLADDING PANELS

Abstract eng:
Spatial variability of FRP composites is relatively unexplored compared to the traditional random variable based stochastic analysis. The available literature points to subjective assumptions regarding these models rather than a rational experimentally based approach. As part of an ongoing research project, the present study presents bi-variate statistical analysis results for glass fibre reinforced composite material properties based on an experimental study. This is undertaken on the composite panels obtained from Mondial House, London, a building constructed in 1974 with cladding comprised of large GFRP panels. These panels were exposed to varying ambient conditions for 32 years and are expected to provide an upper bound on the variability of composite material properties. Coupons for tensile and compressive tests are cut from these panels in a pattern suitable for stochastic modelling. Coupon dimensions and testing methodology are adopted from ASTM and BS EN ISO standards. Inter- and intrapanel analysis of relevant material properties is carried out based on widely accepted guidelines.

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