NDLI: Mechanical Property Degradation of Naval Composite Materials

Content Provider	Springer Nature Link
Author	Mouritz, A. P. Feih, S. Mathys, Z. Gibson, A. G.
Copyright Year	2009
Abstract	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.
Starting Page	913
Ending Page	939
Page Count	27
File Format	PDF
ISSN	00152684
Journal	Fire Technology
Volume Number	47
Issue Number	4
e-ISSN	15728099
Language	English
Publisher	Springer US
Publisher Date	2009-12-11
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Polymer composites Mechanical modelling Thermal modelling Decomposition Mechanics Characterization and Evaluation of Materials Civil Engineering Physics
Content Type	Text
Resource Type	Article
Subject	Materials Science Safety, Risk, Reliability and Quality

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