000			02025nab a2200205 4500
005			20260520001100.0
008			260224s2011 xxu
245	0	0	_aMechanical property degradation of naval composite materials
260			_a _b _coct. 2011
270			_a12/04/2012 ; 12/04/2012
300			_a26 p. ; 913 - 939
520			_aTranscripción del resumen del autor. The effect of heat and fire on the mechanical properties and failure of polymer composite materials used in naval ship structures is investigated. Coupled thermal-mechanical models are presented for predicting the loss in strength and failure of load-bearing polymer laminates when heated from one-side. The thermal component of the models predicts the temperature and decomposition rate of a laminate. Using this information, several mechanical models based on progressive softening analysis or laminate analysis can be used to predict the reduction in strength and time-to-failure. A coupled thermal-mechanical model that is solved using finite element analysis is also presented. Experimental fire-under-load tests are performed on several types of polymer laminate materials to evaluate the accuracy of the models. The tests were performed at different heat flux levels between 10 kW/m2 and 75 kW/m2, which is equivalent to surface temperatures between about 250°C and 700°C. The temperature, mass loss and char formation of a laminate can be accurately predicted for a wide range of thermal conditions using the models. The models can also predict the time-to-failure of laminates under static tension or compression loading. The models presented in this chapter are considered useful analytical tools for naval architects to estimate the loss in mechanical performance and time-to-failure of composite ship materials in fire.
581			_a4
773	0		_tFire Technology _g47
942			_cARTICULO
100	1		_aMouritz, A. P _952412
100	1		_aFeith, S. _952413
100	1		_aMathys, Z. _952414
999			_c187047 _d187047