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exhibits high strength of above 900 MPa, low elastic modulus of 60-63 GPa and good ductility with elongation of 16%-18%, exhibiting excellent property matching. Acicular α phase precipitated during aging promotes strength and elastic modulus while impairs ductility. Cyclic tensile test shows that the solution treated alloy possesses good elastic properties with recoverable strain of 1.7%. Based......
Effect of precipitation on elastic modulus of Al-Zn-Mg-Cu-Li alloys ZHAO Zhong-kui(赵中魁), ZHOU Tie-tao(周铁涛)2, LIU Pei-ying(刘培英)1, LI Huan-xi(李焕喜)1, CHEN Chang-qi(陈昌麒)1 1. School of Materials... hardening is obtained by double-ageing or multi-ageing for the Al-Zn-Mg-Cu-Li alloys. The yield strength and the elastic modulus of the Li-containing alloys have relationships with ageing processes......
behavior; triaxial compression test; strength; elastic modulus 1 Introduction Water, as one of the most valuable nonrenewable resources, has always attracted the attention of human beings who have all... this type of concrete, in addition to their characteristics of flexibility and low permeability, have a desirable shear strength and as such, their application to the construction of cut-off walls......
; Fitting methods for relaxation modulus of viscoelastic materials DUAN Ji-an(段吉安), YANG Cheng-ling(杨成林), SHUAI Ci-jun(帅词俊) (School of Mechanical... less fitting points. These methods can fit not only experimental curve of KWW function, but also the experimental data directly. Key words: viscoelastic material; relaxation modulus; Maxwell model......
): 464-467. [2] IKEHATA H, NAGASAKO N, FURUTA T, FUKUMOTO A, MIWA K, SAITO T. First-principles calculations for development of low elastic modulus Ti alloys [J]. Physical Review B, 2004, 70(17): 174113..., and the <110> texture along the swaging axis is produced with the cold working, which results in the decrease in the elastic modulus along the direction. Stress-induced α"-phase is not observed, β......
, the effects of piles and pile elastic modulus on ground vibrations are well studied. Results show that the pile-reinforcement of the subgrade could significantly contribute to the reduction of ground vibrations. In particular, the increase of elastic modulus of pile could lead to consistent reduction of ground vibrations. However, when the pile elastic modulus is beyond 10 GPa, this benefit of pile......
adopted to investigate the influence of heterogeneity. The results demonstrate that as the homogeneity increases, the peak strength and brittleness of rocks increase, and the macro elastic modulus improves as well. Heterogeneity has great influence on macro elastic modulus and strength when the homogeneity coefficient is less than 20.0. The volume expansion is not so obvious when the homogeneity......
Cold Resistant Properties of High Modulus Polyurethane章于川Key Laboratory of Enviroment-friendly Polymer materials of Anhui Province, School of Chemistry and Chemical Engineering, Anhui University摘 要... level. The physics performances of polyurethane elastomers, such as breakdown strength, Young’s modulus and the cold resistant properties, are all superior.关键词:......
(FLAPW) method.We also found that the density of d-states at the Fermi energy was low.The calculated equilibrium properties such as lattice constant,bulk modulus and its first derivative,and the elastic constants were in good agreement with experimental and theoretical results. Key words:YCu,electronic band structure,density of states,elastic constants,bulk modulus,ab initio; rare earths; [全文内容......
