Materials are subject to changes from temperature. We know there are several states of matter; solid,...

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Mechanical Engineering

Materials are subject to changes from temperature. We know thereare several states of matter; solid, liquid, gas, and plasma.However, within a solid-state, materials have their propertiesaffected, in particular, brittleness. The Liberty ships of theSecond World War were often breaking from cold weather.
What causes these failures, what materials are affected, and arethere any that are not? How is brittleness calculated and measured(types of measurement) and what does this means for aircraftmaterial selection and design considerations? You may include theinfluence of this problem from a maintenance perspective. Yourwork, due in Module 3, is to write a report of a minimum of 2,000words.

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A material is brittle if when subjected to stress it breaks without significant plastic deformation Brittle materials absorb relatively little energy prior to fracture even those of high strength Breaking is often accompanied by a snapping sound Brittle materials include most ceramics and glasses which do not deform plastically and some polymers such as PMMA and polystyrene Many steels become brittle at low temperatures see ductilebrittle transition temperature depending on their composition and processing why are ceramics so much more brittle than metals It has to do with the bonding In metals their metallic bonds allow the atoms to slide past each other easily In ceramics due See Answer

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