In standard cone calorimeter test fire response properties like time to ignition, peak mass loss rate, time to peak mass loss rate, average mass loss rate and burn out time are of interest. The ASTM 1354 [1] recommends sample thickness of less than 50 mm for the test. However, for thinner samples conditions on the unexposed side of the sample should represent actual conditions in real-life application as the test results may be affected by these conditions. Therefore, in this work, a numerical study is carried out to predict the effect of sample thickness on the fire response parameters of polymeric materials. Polymeric materials are broadly classified as charring (thermoset) and non-charring (thermos-plastic). A representative material in each category, namely CPVC (Chlorinated Polyvinyl Chloride) for charring polymer and PMMA (Poly Methyl Metha-Acrylate) for non-charring is studied. It was noted that properties like the peak mass loss rate, time to peak mass loss rate, average mass loss rate and time to ignition vary with sample thickness for both charring and non-charring polymer. These property values become constant for sample thicknesses beyond a certain value. The variation in properties is dependent on the condition on the backside of the sample. When an aluminium block was assumed to have been placed below the sample, the property variation was different from when an adiabatic condition was assumed. The fire response properties for charring and non-charring materials also exhibited different trends.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Numerical Study on Sample Thickness Dependence of Fire Response Properties of Polymeric Materials (Charring and Non-charring) in Standard Cone Calorimeter Test


    Weitere Titelangaben:

    Lect.Notes Mechanical Engineering


    Beteiligte:
    Gupta, Ashwani K. (Herausgeber:in) / Mongia, Hukam C. (Herausgeber:in) / Chandna, Pankaj (Herausgeber:in) / Sachdeva, Gulshan (Herausgeber:in) / Srivastav, Vishal (Autor:in) / Sabarilal, S. (Autor:in) / Kumar, Amit (Autor:in)

    Kongress:

    National Conference on IC Engines and Combustion ; 2019 ; Kurukshetra, India November 01, 2019 - November 04, 2019



    Erscheinungsdatum :

    2020-08-19


    Format / Umfang :

    11 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Thermal Expansion for Charring Ablative Materials

    Fu, Rui / Weng, Haoyue / Wenk, Jonathan F. et al. | AIAA | 2019


    Crack Modeling in Charring Ablation Materials

    Fu, Rui / Martin, Alexandre | TIBKAT | 2023


    Crack Modeling in Charring Ablation Materials

    Fu, Rui / McDaniel, Sean / Beck, Matthew et al. | AIAA | 2021


    Crack Modeling in Charring Ablation Materials

    Fu, Rui / Martin, Alexandre | AIAA | 2023