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sliding occurs owing to shear failure of the slip surface, which subjects to Mohr–Coulomb (M–C) strength criterion. Meanwhile, in order to easily analyze the stability of a soil nailed slope in actual... concept of soil nailing is to reinforce the soil with closely spaced passive inclusions to create a coherent gravity structure, and consequently increase the overall shear strength of the soil in situ......
cracking (KⅠSCC) from 10.9 MPa·m1/2 to 24.5 MPa·m1/2, yield strength and elongation of the alloys all increase a little. Key words: Al-Zn-Mg-Cu alloys; microstructure; praseodymium; mechanical...] DIXIT M, MISHRA R S, SANKARAN K K. Structure-property correlations in Al 7050 and Al 7055 high-strength aluminum alloys[J]. Mater Sci Eng A, 2008, 478(1/2): 163?172. [2] DUMONT D, DESCHAMPS......
of porosity and tensile direction on ultimate tensile strength, the stress concentration models were established. The results show that the tensile properties of ordered porous copper depend...铜试样在不同方向的拉伸性能 Fig.5 Tensile properties of ordered porous copper with different porosities in different directions: (a) Ultimate tensile strength; (b) Yield strength and strain at peak stress......
by vermiculite, and the loss of strength caused by vermiculite can be made up with the adding of cement and quick lime, and finally the properties of the stabilized silt are improved. The optimum proportion.... 图7 固化淤泥无侧限抗压强度试验结果 Fig. 7 Unconfined compressive strength test result of stabilized silt 根据以上试验结果可得,蛭石粉具有显著的吸水作用,可有效提高淤泥的最佳含水量,但当蛭石粉掺量超过4%后,吸水效果变得不明显,同时掺加蛭石粉对淤泥的强度有所降低,综合考虑,推荐采用4%作为固化剂中蛭......
reinforced polymer (CFRP) strips, and four RC beams flexural strengthened with 5-20 mm thick glubam plate and shear strengthened with CFRP strips. The results show that the ultimate strength of the RC... of fibre density on strength capacity of bamboo[J]. Materials Letters, 2004, 58(21): 2595-2598. [9] Lo Y T, Cui H Z, Tang W C, et al. Strength analysis of bamboo by microscopic investigation......
of sintering temperature on flexural strength and Vicker’s hardness(a) and fracture toughness and residual stress(b) of S-5 sintered at 35 MPa for 60 min 结合图3和4可见,烧结温度较低时(1650 ℃),由于所提供的材料烧结动力不足,使得晶粒生长不完全,表现为晶粒细小...; Effect of holding time on flexural strength and Vicker’s hardness(a), fracture toughness and residual stress(b) of S-5 sintered at 1750 ℃ under 35 MPa 图6 1750 ℃,35 MPa下不同保温时间的S-5表层断口微观形貌 Fig. 6......
): 90-95. [7] CHEN S Y, CHEN K H, DONG P X, YE S P, HUANG L P. Effect of heat treatment on stress corrosion cracking, fracture toughness and strength of 7085 aluminum alloy[J]. Transactions of Nonferrous... Wen-lin, TIAN Lin-hai. Effect of aging treatment on mechanical and intergranular corrosion properties of 7A85 high strength aluminum alloy[J]. Rare Metal Materials and Engineering, 2013, 42(12......
extraction solvent, ionic strength, solution pH, and extraction pattern were discussed for the optimal quantification of salicylaldoxime-spiked water. When the described method was applied to four spiked... chromatogram obtained from water sample spiked 1 μg/mL of salicylaldoxime standard solution by LLE with different mobile phase components: 3.3 Extraction solvent and ionic strength As known, in a LLE......
the Kissinger method. The compression strength of the wollastonite glass ceramic samples (7.5 cm×7.5 cm) reached 251 MPa. Key words: glass ceramics; crystallization thermodynamics; crystallization kinetics Cite... exhibit a compact structure and a smooth surface. The mechanical property test shows that the compression strength is 251 MPa. 4 Conclusions A wollastonite glass ceramic was prepared with waste glass......
径如图6(a)所示,接头断裂在Ni箔生成的Mg2Ni脆性金属间化合物层上,结合图7硬度结果:接头中Mg2Ni化合物的硬度最大,为142.0HV,表明连续分布的Mg2Ni是整个接头的最脆弱点. 图5 经超声处理后的母材及钎缝的剪切强度 Fig. 5 Shear strength of base materials and joints with the ultrasonic..., ZHANG Jian-yuan, DING Xin-quan, SUN Hua-wei. Effect of Al+Zn elements of filler metal on microstructures and shear strength of magnesium alloy AZ31B brazed joint[J]. The Chinese Journal of Nonferrous......