Improvement of fire door design using experimental and numerical modelling investigations

Purpose Fire door should withstand a high temperature without deforming. In the current paper, challenges of improving behaviour conventional fire were described using various internal stiffeners in pair swinging-type door. Design/methodology/approach The distribution on outside surface was measured with distributed eight thermocouples. Subsequently side cooled pressurized water hose jet stream 4 bar. transient simulation for thermal and structure analysis conducted finite element modelling (FEM) ANSYS 19. selected cross sections during numerical double S, C hat omega applied to 2.2 m 3 length. Findings During FEM analysis, maximum deformations 7.2028, 5.4299, 5.023 cm length 6.57, 4.26, 2.1094 Finally, gives more than three times reduction deformation compared S which provided reference data manufacturers. Research limitations/implications research limitation included limited number tests due cost single test, implication achieve an optimal study design. Practical implications Achieving optimum design where stiffener minimum other considered practical implication. work two experimental according standard test (ANSI/UL 10C – Positive Pressure Tests Door Assemblies) stiffeners, achieved deformation. Originality/value behavior mechanical response leaf improved through under testing. This 19 six cases different lengths doors. model showed very close agreement results error 0.651% 1.888% omega.