Results 111 to 120 of about 5,033 (154)
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Threshold stress for cyclic creep acceleration in copper
Journal of Materials Science, 1988The phenomenon of cyclic creep acceleration (CCA) is well known. Also, it has been observed experimentally that there exists a peak stress level above which CCA begins to occur. For copper the value of this peak stress is known to be independent of cyclic stress conditions such as stress amplitude and frequency.
k.t. hong +2 more
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The effect of “creep acceleration” in the theory of viscoelasticity
Moscow University Mechanics Bulletin, 2007A particular case of constitutive relations in the Pobedrya nonlinear theory of viscoelasticity is considered. It is shown that these relations can be used in the problem of describing the material softening under pulsed loading.
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Simulative Accelerated Creep Test on Gleeble
Materials Science Forum, 2010The simulative accelerated creep test (ACT) on Gleeble thermal-mechanical simulator was developed as a response to an overall need of gaining in a short time useful physical data for estimation of long-term behaviour of materials exposed to operation at elevated temperatures.
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Study on Accelerated Creep Properties and Creep Damage Constitutive Relation for Volcanic Breccias
2013In order to know about the accelerated creep properties of volcanic breccias, triaxial compression rheological experiments are carried out on rock servo-controlled triaxial rheology equipment. Based on the experimental results, the accelerated creep phase of creep curve of volcanic breccias is analyzed.
Rubin Wang +3 more
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Creep behavior of geosynthetics by temperature accelerated testing
2017Прогнозирование ползучести геосинтетических материалов является необходимым для определения расчетного срока службы конструкций с их применением. В данной работе были проведены испытания на ползучесть георешеток и геополотен, изготовленных из двух основных типов синтетических полимеров - полиэфира и полипропилена, используемых при производстве ...
Srungeri, Sanjeev Gautham +3 more
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Creep behavior of geosynthetics using confined-accelerated tests
Geosynthetics International, 2011ABSTRACT: The creep behavior of geosynthetics has commonly been determined using standardized creep tests, which are time consuming and very expensive. In addition, these tests involve the use of in-isolation specimens. Thus they are not likely to consider the overall effect of soil confinement.
F.A.N. França, B.S. Bueno
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Accelerated characterization for long-term creep behavior of polymer
SPIE Proceedings, 2008ABSTRACT Based on the observation that high stress results in increasin g creep rate of polymeric material, which is analogous to the time-temperature equivalence, where high temperature accelerates the process of creep or relaxation of polymer, the time-stress equivalence is investigated.
Rongguo Zhao +3 more
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The force on an accelerating body in axisymmetric creeping flow
Zeitschrift für angewandte Mathematik und Physik ZAMP, 1972A general and easily applied expression is derived for the force on an accelerating body in an axisymmetric slow viscous flow. This expression is valid for any axisymmetric body, irrespective of the conditions at the surface.
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Accelerated creep as a precursor of friction instability and earthquake prediction
Physical Mesomechanics, 2010Earthquakes can be considered as a result of tribological instability in a system of faults of the Earth crust. Similar instabilities can be reproduced and studied in detail in laboratory-scale experiments. In this work, the earthquake model under study is a tribosystem with pronounced stick-slip behavior. Measurement of the motion of the system with a
V.L. Popov +3 more
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Extrapolation of Sigmoidal Creep Curve by Strain Acceleration Parameter
Key Engineering Materials, 2013It has been widely accepted that the creep characteristics at high temperatures are mainly evaluated by a minimum creep rate and a time to fracture. Although, a shape of creep curve may vary depending on deformation conditions, the apparent minimum creep rates may become the same value.
Hiroyuki Sato +3 more
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