Lifetime Data Analysis Using Proportional Hazards Models
topic
Cox proportional hazards regression models the relationship between textile specimen failure hazard rate and covariates including fibre type, yarn twist, fabric construction, and test condition variables, estimating hazard ratios that quantify the relative increase in failure risk associated with each factor level while allowing for censored observations in the durability dataset.
Role
Enables multi-factor analysis of textile durability datasets relating material composition and structural variables to failure hazard rates, identifying which construction parameters significantly influence service life and quantifying their relative effects in a framework that properly handles the right-censored observations inherent in terminated accelerated life tests.