Abstract
This article highlights the use of experimental methods in determining operating conditions for a consumer product. The research was prompted by the investigation of a house fire in which it was determined that the fire originated at a ceramic cooker/grill on the homeowner’s deck. The cause of the fire is believed to be the escape of hot gases from the cooker through a crack in the lower portion of the cooker, which pyrolized the wood table on which the cooker rested. The source of the crack is unknown, but one hypothesis inferred that the hinge design was defective because it applied concentrated loads to the ceramic material at the hinge attachment points. This study examines the stress/strains that are experienced by the ceramic material of the cooker during normal operation at elevated temperature and abnormal operation, including abuse and improper functioning of the hinge. The experimental methods and analysis techniques used to perform the measurements are detailed.
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