During tensile creep finite element analysis of the wavelet
By means of the tensile creep property measurement of alloy oriented single crystal nickel-based supcralloy and microstructure observation, the characteristics of microstructure evolution to determine. Using the stress-strain finite element method (FEM) for calculating the von Mises stress in the coherent interface of the cubic/Af phases the influence of the applied stress on the stress distribution of the cubic//y phases is investigated for validating the regularity of/phase directional coarsening. And innovative use of second generation wavelet and finite element methods to solve the micro areas with metal creep conditions. Results show that the distribution of the von Mises stress in the cubic y/y interfaces may be changed by the applied stress, Occurrence of different crystal lattice contraction and expansion strain of surface, which, the lattice expanding strain on planes under the action of the applied stress may trap the Al, Ti atoms with bigger radius to promote the directional growth of γ phase along the normal direction of the expanding lattice, after the alloy crept is identified as the/phase transformed into the layerstructure along the direction perpendicular to the stress axis. This is thought to be the regularity of γ phase directional coarsening during creep of the alloy, furthermore, proposing the driving force of the elements diffusing and γ phase directional coarsening.
wavelet FEM CWT Algorithm Adaptive
Zhang Shu Meng Lei
Mechanical College Shenyang University of Chemical Technology Shenyang,China Software Engineering Shenyang Normal University Shenyang,China
国际会议
上海
英文
375-378
2011-03-11（万方平台首次上网日期，不代表论文的发表时间）