Results 31 to 40 of about 3,979 (211)
Meitan xuebao, 2023 Deep coal is mostly in a three-dimensional unequal stress state. In order to study the dynamic characteristics of coal under impact load, the dynamic failure mechanics experiment of coal was carried out by true triaxial Hopkinson experimental system ...
Rongxi SHEN +5 more
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Dynamic Covalent Networks of Molecular Clusters for Hard and Impact-Resistant Glass with Feasible Processability. [PDF]
Adv Sci (Weinh)Molecular granular material glass is fabricated by crosslinking sub‐nm POSS clusters with dynamic borate ester bonding while the materials combine high transparency, modulus, and hardness with superior impact resistance and (re)processability, offering a promising strategy for creating robust yet highly processable organic glasses.
Xiao H, Yin JF, Lan L, Liu-Fu W, Yin P.
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工程科学学报, 2023 China has large regions that freeze seasonally or multiple times a year. Special geological and climatic conditions must be considered for the engineering construction and mining of mineral resources in these regions, and slope stability in cold regions ...
Feng GAO +5 more
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Effects of imperfect experimental conditions on stress waves in SHPB experiments [PDF]
, 2015 Experimental and numerical simulations were undertaken to estimate the effects of imperfect conditions on stress waves in split Hopkinson pressure bar (SHPB) experiments.
Wei YP(魏延鹏) +8 more
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矿业科学学报, 2020 A new approach is provided to study the growth problems of mode Ⅰ and mode Ⅰ-Ⅱ mixed cracks, Split Hopkinson Pressure Bar(SHPB) is used to impact the PMMA USH(Unilateral semicircular hole) specimen containing precast crack.Results of mode Ⅰ cracks and ...
Li Chengxiao, Zhang Yuantong, An Chen
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Dynamic characteristics and constitutive model of coal samples with different length diameter ratio
矿业科学学报, 2023 In order to study the dynamic performance of coal samples with different length diameter ratio under impact load, this paper used an improved Hopkinson compression bar experimental device (ϕ75 mm), and carried out the impact compression experiments under
Xie Beijing +3 more
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Experimental research on dynamic mechanics of early age concrete
矿业科学学报, 2020 The single and double impact experiments were carried out on C20 and C40 concrete at five different ages using a 75 mm SHPB experimental device.The mechanical properties of early age concrete under impact loading were systematically studied from two ...
Li Shenglin +3 more
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Yantu gongcheng xuebao, 2022 To explore the energy dissipation law and failure mode of soft rock interlayer in western mining areas of China after dynamic disturbance, the dynamic impact failure tests on weakly cemented red sandstone are carried out by using the separated Hopkinson ...
ZHANG Hui-mei 1, CHEN Shi-guan 2, WANG Lei 2, CHENG Shu-fan 3, YANG Geng-she 2, SHEN Yan-jun 4
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Metals, 2019 Iron−nickel based ultra-high strength steel (wt. 18~20% Ni) is characterized by its high strength and low thermal conductivity, and is normally used to make key components by forming and machining processes.
Hongge Fu +7 more
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Yantu gongcheng xuebao, 2022 The skarn at a depth of 700 m is taken as the research object to study the dynamic behaviors of deep rocks under high temperature. The impact compression tests at different impact air pressures (0.8, 1.0 and 1.2 MPa) are carried out on the skarn at room ...
LIU Lei 1, LI Rui 1, QIN Hao 1, LIU Yang 2
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