Thermal Hazard Simulation of Carbon Nanotubes

Haider K.  Raheem

Authors

Haider K. Raheem Faculty of management and economics, Karkh University of science

Keywords:

Carbon Nanotubes, Thermal Hazard, Hazard Models, Cox model, Piecewise exponential model, Spline-Based Hazard Regression model.

Abstract

This study investigates the high temperature hazard of carbon nanotube failure under different temperature levels, by modeling semi-parametric or parametric hazards relying on a numerical simulation system where temperature-dependent degradation trajectories are generated using Arrhenius-based simulations, producing realistic failure time data for NTS. Three methods were applied to estimate temperature hazards, namely the Cox model of relative hazards for the purpose of evaluating the effect of thermal and material covariates on failure hazards, then the Piecewise exponential model was applied ( segmented ) for the purpose of capturing the interval-specific hazard differences and the Spline-Based Hazard Regression model to estimate the smooth hazard function over time and for each model the hazard was derived for carbon nanotubes using probability, and then compared the three models between these methods using a simulation system based on comparison scales where it was found that the Cox model is better than the rest of the models used in this study to analyze the hazard of The heat on the carbon nanotubes.

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