Insulation pyrolysis for sandwich panel fire-structure simulations
conference paper
A sandwich panel, as a very important component in building façade systems, consists of two thin walled plates plus an insulation core. For this core, traditionally materials like mineral wool have been used. However, polymer composites are increasingly used instead, for among others their higher stiffness, and better resistance to wind and disintegration due to e.g. flood water and molds. But in some cases, polymer composites may also increase the risks due to fire. Firstly, such panels may catch fire: Khan et al. [1] found that typical flame-retardant aluminum cladded sandwich panels can be ignited above a thermal load of 25 kW/m2 . Secondly, their resulting structural behavior is affected seriously too: Birman et al. [2] predicted stress and deformations of sandwich panels under temperature loads, and concluded that it is necessary to account for polymer pyrolysis, which significantly affected the strength. In general, pyrolysis behavior results in changing thermal and mechanical properties, which should be considered in related experiments, simulations, and design rules.
Topics
TNO Identifier
979935
Source title
International Conference on Performance-Based Codes and Fire Safety Design Methods, Detroit, United States.
Pages
1-5
Files
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