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with hierarchical microporous structures and different wettability[J]. Acta Physico-Chimica Sinica, 2012, 28(12): 2931-2938. [40] MAITI S K, ASHBY M F, GIBSON L J. Fracture toughness of brittle cellular......
verification of disc cutter ring in rolling process[J]. Hot Working Technology, 2017, 46(15): 129-133, 136. [18] MOON T, NAKAGAWA M, BERGER J. Measurement of fracture toughness using the distinct element......
,而Y直接由试验得到,因此,为方便研究,本文通过分析轴向最大主应力差Y与干湿循环次数N之间的关系揭示干湿循环对土抗剪强度的影响. 图2 抗剪强度曲线(T=40 d) Fig. 2 Curves of shear strength and normal stress on shearing fracture surface (T=40 d) 当龄期T达到28 d时,轴向最大应......
] investigated the results of severe plastic deformation on material characteristics. They concluded from tensile tests that the fracture elongation increased with decreasing grain size, while the yield......
, LANGDON T G. Microstructures, strengthening mechanisms and fracture behavior of Cu-Ag alloys processed by high-pressure torsion [J]. Acta Materialia, 2012, 60(1): 269-281. [12] TIAN Y Z, WU S D......
Co烧结体抗弯强度损失率较低的原因.由于单质Co胎体对金刚石颗粒具有较高的包镶力,烧结体在弯曲断裂时,金刚石在较大拉伸张力作用下,会产生移位与松动,因此,微观观察胎体与金刚石界面有一定的缝隙存在. 图 3 2种粉末烧结体的断口形貌SEM图 Fig. 3 Fracture SEM images of two kinds of sintered bodies 3.4 ......
(1): 91-96. FAN Chun-ping, ZHENG Zi-qiao, JIA Min, ZHONG Ji-fa, CHENG Bin, LI Hong-ping. Study on microstructure, tensile properties and fracture toughness of 2397 Al-Li alloy[J]. Rare Metal Materials......
): 179-185. [10] LIU D, ZHANG L X, FENG J C, LIU H B, HE P. Microstructure and fracture behavior of SiO2 glass ceramic and TC4 alloy joint brazed with TiZrNiCu alloy[J]. Journal of Central South University......
conditions In the 1250 °C, 60 min, FC process, the central equiaxed grains gradually transform to a lump structure with the dissolution of the second arms, while the columnar grains become thin and fracture......
fracture 图13 不同箍筋间距下空心板梁位移曲线 Fig. 13 Displacement curves of hollow beam under different stirrup spacings 5 结论 1) 通过模拟预应力混凝土板在近爆冲击波作用下的动力响应及炸药驱动预制破片的试验,其结果证明了本文中所用材料本构模型及技术路线的合理性与可靠性. 2) 在......