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Full Description
Mechanics of Creep Brittle Materials-l was published in 1989 as the proceedings of a Colloquium held in Leicester in the summer of 1988. The Colloquium examined the creep response of a wide range of materials, including metals, engineering ceramics and ice, with the aim of determining similarities in the response of these materials and the way in which their behaviour is modelled. The proceedings were structured so as nature of the Colloquium, with papers to reflect the interdisciplinary grouped together largely on the basis of the phenomena being examined, rather than by class of material. Mechanics of Creep Brittle Materials-2 was held in Leicester in Septem ber 1991 to discuss advances made in our understanding of the response of creep brittle materials since the first Colloquium. The scope of the Colloquium was extended to include mineral salts, concrete and com posite systems. These proceedings are once more structured so that the reader can readily compare the response of different material systems and evaluate the suitability of the range of models presented to the materials he is interested in. In fact a number of papers directly compare the of a range of different materials with the aim of identifying behaviour general strategies for the testing and modelling of creeping materials.
Contents
1. Crack Propagation in Creeping Bodies.- A study of creep crack growth in engineering materials.- Transition effects in creep-brittle materials.- Crack growth stability in saline ice.- Finite element prediction of creep damage and creep crack growth.- Influence of continuum damage on stress distribution near a tip of a growing crack under creep conditions.- Dislocation movement at crack tip of single crystals of ice.- A theoretical study on the effect of residual stress on creep brittle crack growth.- Creep crack growth prior to stress redistribution.- Creep-fatigue crack growth in welded fusion boundaries.- 2. Continuum Mechanics—Deformation and Damage Growth.- Microscopic models and macroscopic constitutive laws for high temperature creep and creep fracture of metallic and ceramic materials.- Characteristic temperature of deformation of materials and cold brittleness of BCC metals and ceramics.- On the linking-up of microcracks in creeping polycrystals with grain boundary cavitation and sliding.- Long term creep ductility minima in 12% CrMoV steel.- Failure criteria on creep rupture of mineral salt based on micromechanical mechanisms.- Volume change and energy dissipation in rock salt during triaxial failure tests.- Non-stationary cavity nucleation—a limiting process for high-temperature strength and superplasticity in ceramics.- Superplastic phenomena in some structural oxide ceramics.- Creep of powder metallurgical chromium.- Effective properties in power-law creep.- Deformation and creep of silicon nitride-matrix composites.- Localization and development of damage under high temperature loading conditions.- Non-linear models of creep damage accumulation.- Calculation of failure probability for brittle materials.- On the applicability of the superpositionprinciple in concrete creep.- Creep failure of weldments in thin plates.- Stress calculation the ceramic thermal barrier coatings for the cooled turbine blades.- Modelling the mechanisms and mechanics of indentation creep with application to zirconia ceramics.- Indentation creep.- The use of the soft indenter technique to investigate impression creep in ceramic crystals.- Relationship between creep and fracture of ice.
