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the plastic deformation process have been observed in the high strain rates tension and compression tests[2-3]. This indicates that the deformation will become non-uniform in the plastic deformation... for grain interior phase under high strain rate loading For NC materials under quasi-static loading, dislocation glide mechanism and diffusion controlled mechanism are the main carriers of plastic......
; (2) where σ is the equivalent yield strength; ε is the equivalent plastic strain; is the dimensionless equivalent plastic strain rate(made dimensionless by dividing the equivalent plastic strain by a unit plastic strain rate); T* = (T - Tr)/(Tm - Tr) is a dimension-less temperature; Tr is room temperature and Tm is melting temperature; Ci, N and M......
. Experimental yield points for three aluminum alloy sheets from 0.2% to 2% plastic strain were determined based on the equivalent plastic work. And the geometry of the experimental yield loci were... of constant amount of total plastic work per unit volume, the relationship between stress-strain along two directions in biaxial tensile test and equivalent stress-equivalent strain can be written as ......
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of accumulated plastic, strain, the apparent elastic modulus of argillite decreases in a form of exponential decay function, whereas the apparent Poisson ratio increase in a form of power equation. A ratio of unloading recoverable strain to the total strain increment occurred during a loading cycle is defined to illustrate the characteristic relations between anisotropic coupled elasto-plastic......
of plastic power is expressed by inner-product of strain rate vector, that is (4) where is strain rate vector and unit vector. From the definition of vector inner... the value of m into Eqn.(9) yields the minimum value of the stress effective factor. Note that the plastic power is integrated by strain rate vector inner-product and its direction cosines determined......
: A Low-cycle fatigue behavior and plastic strain energy of A356 alloys LIU Zhong-xia, SONG Mou-sheng, LI Ji-wen, WENG Yong-gang, WANG Ming-xing, SONG Tian-fu (School of Physics Engineering... method and titanium content on the plastic strain energy density and low-cycle fatigue behavior of A356 alloys were investigated. The results show that four kinds of A356 alloys show cycle hardening......
to the load on the top and bottom faces no longer perfectly parallel. Therefore, the strain fields have asymmetrical distribution. With the increase of compressive load, plastic deformation took place... 12 to 18 kN. The larger the plastic deformation, the more unstable the specimen was on the clamps, which leads to the instability of the measurement strain. Fig. 6 Strain (εy) fields of specimen 2-1......
-structural mechanics of large plastic strain[M]. Beijing: Science Press, 2003. [10] 赵德文. 连续体成形力数学解法[M]. 沈阳: 东北大学出版社, 2003.ZHAO De-wen. Mathematical solution for forming force of nonindividual body[M...; 文献标识码:A Closing and repairing process of Mg alloy casting imperfections in plastic deformation CAO Han-xue1, 2, LONG Si-yuan1, 2, YOU Guo-qiang1, 2, LIAO Hui-min1 (1. College......
methods on LCF behavior is analyzed with plastic strain energy density. The results show that all alloys exhibit the cyclic hardening behavior. Raising Ti content can obviously increase the cyclic... that of the alloys with high titanium content. This is because that the alloys with low titanium content can consume higher cyclic plastic strain energy during cyclic deformation compared with alloys......
