Towards the Use of Novel Materials in Shipbuilding: Assessing Thermal Performances of Fire-Doors by Self-Consistent Numerical Modelling

Applied Sciences

Jan Kašpar¹  GiadaKyaw Oo D’Amore²  Alberto Marinò²  Marco Caniato³  Francesco Mauro⁴ 

[1] Department of Chemical and Pharmaceutical Sciences, University of Trieste;Department of Engineering and Architecture, University of Trieste, I-34127 Trieste, Italy;Faculty of Science and Technology, Free University of Bozen, I-39100 Bozen, Italy;Maritime Safety Research Centre, Department of Naval Architecture, Ocean and Marine Engineering, University of Strathclyde, Glasgow G4OLZ, UK;

关键词: fire-resistance test;    finite element analysis;    marine fire-doors;    thermo-mechanical analysis;    innovative insulator;    thermal bridges;   

DOI  :  10.3390/app10175736

来源: DOAJ

【 摘 要 】

Nowadays, fire-doors optimization is approached by using consolidated design guidelines and traditional materials, such as rock wool. Then, selected solution is directly tested in a mandatory fire-test. Unfortunately, few pieces of information could be retrieved either if the test succeeds or fails, which makes both improvements in the design and use of innovative materials difficult. Thus, in this work, a self-consistent finite element method (FEM) analysis is developed and assessed against experimental fire-test results, highlighting the critical parameters affecting the numerical simulations. Using this tool, a new fiberglass-containing foam, with improved acoustic and mechanical properties, as compared to the rock-wool, is studied as a potential insulating material for on-board fire-doors. The assessment of the performance of the new material demonstrates that, contrary to common believe, the effective thermal insulation capacity is not necessarily the critical factor in determining the fire-resistance of a fire-door. Using the validated FEM analysis, it has been proven that the reduction of the thermal bridges originated at the door edges allows, firstly, for the attainment of a fire-door 37% thinner and 61% lighter with respect to a traditional one, and, secondly, the use of new material as insulator in fire-doors that, even if less thermally capable, could improve other properties of the door, as an example its soundproofing.

【 授权许可】

Unknown