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Geotechnical Journal, 1991, 28(1): 25-41. [7] EXADAKTYLOS G E, STAVROPOULOU M C. A closed-form elastic solution for stresses and displacements around tunnels [J]. International Journal of Rock Mechanics &......
Dynamic Elastic Modulus of Cement Paste at Early Age based on Nondestructive Test and Multiscale Prediction Model赵海涛1,黄冬辉2,WANG Xiaojun3,4,CHEN Xudong11. College of Civil and Transportion Engineering... to evaluate the dynamic elastic modulus of cement paste. Moreover, the effect of water-cement ratio and conventional admixtures on the dynamic elastic modulus of cement paste was investigated, in which......
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such as elastic constant C44, Cauchy pressure parameter (C12-C44), elastic modulus E, the shear modulus G and their ratio G/B0 are used to characterize and assess the effect of alloying element and Fe.... The intrinsic embitterment of NiAl can be restrained if Fe content is enough low. Key words: B2-NiAl; pseudopotential plane-wave method; alloying; elastic modulus B2结构的NiAl金属间化合物作为一种宇航用......
of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China) Abstract: Nanoindentation techniques were used to determine the hardness and elastic modulus of Ti-24Nb-4Zr-8Sn (abbreviated as Ti-2448) single crystals with different orientation surfaces. Both hardness and elastic modulus anisotropy were observed. The indentation modulus is 68.1, 69.1 and 78.9 GPa on (001), (011) and (111......
; 文献标识码:A Hardness and elastic modulus of microcastings by nanoindentation REN Ming-xing1, 2, LI Bang-sheng1, 2, YANG Chuang1, 2, FU Heng-zhi1 (1. School of Materials Science... was manufactured by new micro-precision casting technology based on metal mold, and its hardness and elastic modulus were measured by nanoindentation. The results show that the hardness......
Analytical Model of Elastic Modulus and Coefficient of Thermal Expansion for 2.5D C/SiC Composite孔春元,孙志刚,NIU Xuming,SONG YingdongCollege of Energy and Power Engineering and State Key Laboratory.... The fiber direction of warp is defined by cosine function to simulate the undulation of warp, and based on uniform strain assumption, analytical model of the elastic modulus and coefficient of thermal......
by scanning electron microscopy (SEM), compressive tests and instrument of elastic modulus. The results show that the good plasticity of space-holder (PMMA) greatly facilitates the fabrication of porous..., but compressive strength and elastic modulus take on the trend of decreasing. The effect of sintering temperature is not obvious to the average pore diameter and porosity, but compressive strength and elastic......
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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......
