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Creep of a composite with a diffusional creeping matrix
Materials Science and Engineering: A, 2002Creep of a composite consisting of diffusional creeping matrix and elastic inclusions has been examined on the basis of micromechanics. A two-dimensional model, in which cylindrical matrix grains and inclusions constitute a composite, is adopted. Grain boundary and interface diffusion and sliding are introduced as deformation processes of plastic ...
A. Madgwick +3 more
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Impression creep; a new creep test
Journal of Materials Science, 1977A new indentation creep test is introduced in which the indenter is a circular cylinder with a flat end. Unlike conventional indentation tests, a steady-state velocity is observed in this new test shortly after a transient period during which the indenter makes a shallow impression on the surface of the specimen; hence the name “impression creep”. This
S. N. G. Chu, J. C. M. Li
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Creep and Creep Stress Relaxation
1981The time-dependent increase in strain at constant stress is known as creep, whereas the decrease in stress at constant strain is known as creep stress relaxation. Both of these phenomena are very pronounced at high temperatures and can operate continuously over very long periods.
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Metallurgical and Materials Transactions A, 2002
High-temperature creep experiments often reveal a transition at very low stresses to a region where the stress exponent is reduced to a value lying typically in the range of ∼1 to 2. This region is generally associated with the occurrence of a new creep mechanism, such as grain-boundary sliding, diffusion creep, and/or Harper-Dorn creep. Several recent
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High-temperature creep experiments often reveal a transition at very low stresses to a region where the stress exponent is reduced to a value lying typically in the range of ∼1 to 2. This region is generally associated with the occurrence of a new creep mechanism, such as grain-boundary sliding, diffusion creep, and/or Harper-Dorn creep. Several recent
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Creep and Creep Rupture of Structural Ceramics
1991Structural ceramics are often two phase materials, in which rigid refractory grains, fibers, or whiskers are bonded by a less refractory matrix. At elevated temperatures, creep occurs by deformation of the matrix, resulting in the localization of stresses along grain boundaries, followed by cavitation and eventually by structural failure of the ceramic.
S. M. Wiederhorn +2 more
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Study on very long-term creep tests and nonlinear creep-damage constitutive model of salt rock
International Journal of Rock Mechanics and Minings Sciences, 2021Jianfeng Liu
exaly