Fractal conceptualization of intumescent fire barriers, toward simulations of virtual morphologies.

ABSTRACT: By limiting the heat spread during a fire hazard, intumescent coatings are important components of passive protection systems. They swell due to heat induced reactions of micro constituents and are transformed into carbonaceous porous-like media, known as intumescent chars. Their multiscale inner structures, key elements of performance, are costly to predict by recurrent and large scale fire testing while numerical simulations are challenging due to complex kinetics. Hence, we propose a novel approach using the fractal theory and the random nature of events to conceptualize the coating expansion. Experimental specimens were obtained from fire protective coatings exposed to bench scale hydrocarbon fire. Mass fractals were evidenced in the slices of 3D sample volumes reconstructed from X-ray

SUBMITTER: Okyay G 

PROVIDER: S-EPMC6372717 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature