Titlebook: Ceramics; Mechanical Propertie Dietrich Munz,Theo Fett Book 1999 Springer-Verlag Berlin Heidelberg 1999 ceramics.deformation.fatigue.fractu

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大喘氣

https://doi.org/10.1007/978-3-658-17352-4conditions ceramics fail by the extension of flaws, whereas the competing failure mechanism by dislocation motion would require higher stresses. Nevertheless the plastic deformation and the formation of dislocations have been observed under specific loading conditions.

香料

Plasticity,conditions ceramics fail by the extension of flaws, whereas the competing failure mechanism by dislocation motion would require higher stresses. Nevertheless the plastic deformation and the formation of dislocations have been observed under specific loading conditions.

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極肥胖

Physical Properties,ty ρ, specific heat C., density ρ, Young’s modulus . and Poisson’s ratio ν. These properties are not only important for material selection for a specific physical application, they also characterize the thermal shock sensitivity of ceramics.

Mystic

Fracture Mechanics,ts may be pores, cracks or inclusions. The brittleness of ceramic materials is caused by the low resistance against crack extension. The observed large scatter in strength is due to the scatter of flaw size in a component.

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羊欄

Multiaxial Failure Criteria,ery often multi-axial stresses occur. Also under uniaxial external loading multiaxial stresses are possible, for instance in notched components. Rotating structures and components under internal pressure exhibit multiaxial stresses. Also thermal stresses are in general multiaxial. In this section, f