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Introduction With the rapid development of industry, the reliability the demand of components enduring high temperature and complex load has become higher. For many metals, the creep deformation under room... be attempted to produce high strength complex parts by rheological forming at constant temperature, low load and slow rate. In addition, the creep deformation of 45 steel is samller than that of 20......
. The rate of creep deformation is a function of the material properties, exposure time, exposure temperature and the applied load (stress). Depending on the magnitude of the applied stress and its duration, the deformation may become so large that a component can no longer perform its function. In this paper, the uniaxial tension and tensile creep tests of EPS were carried out. 2 Experimental......
the creep temperature increases to 200 ℃, the creep stress is decreased by 45.8%. The main deformation mechanism of the alloy is intragranular slipping of the dislocations in the creep temperature range of 125-175 ℃. Grain boundary slidings happen in this alloy at the creep temperature of 200 ℃ and the deformation of this alloy is coordinated by intragranular slip and grain boundary sliding. Lots......
of creep deformation calculated with these two codes is small, and the influences of concrete creep on the pre-camber for most of the segments are negligible. The deflections and stresses of the box... Introduction The creep deformation of concrete is non-elastic and depends on the load and time. It is about 1 to 3 times of the elastic deformation in long-span concrete bridges and is not negligible[1......
Corporation Limited, Kunming 650000, China Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020 Abstract: Active fault creep slip induces deformation of rock..., a disk rotation test system and the corresponding laboratory test method were developed for simulating rock mass deformation inducing by creep slippage of faults. A series of rotation tests for soft......
J. Cent. South Univ. Technol. (2008) 15(s1): 577-581 DOI: 10.1007/s11771-008-425-9 Creep experimental test and analysis of high-performance concrete in bridge CHEN Zhi-hua (陈志华)1, YUAN Jian (袁... and Technology, Changsha 410004, China) Abstract: Factors that have effect on concrete creep include mixture composition, curing conditions, ambient exposure conditions, and element geometry. Considering......
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Evolution of dislocation cells during plastic deformation ZHOU Zhi-min(周志敏)1, SUN Yan-rui(孙艳蕊)1, ZHOU Hai-tao(周海涛)2 (1. College of Science, Northeastern University, Shenyang 110004, China; 2.... By using severe plastic deformation(SPD) techniques, materials with fine grain size as small as 200-250nm have been obtained. However, the nature of the grain boundaries has not been theoretically......
