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Effect of heating-rate on failure temperature of pre-loaded brass H62 CHEN Bin(陈斌), PENG Xiang-he(彭向和), FAN Jing-hong(范镜泓), SUN Shi-tao(孙士涛) College of Resource and Environment Science... were also observed and analyzed. It is found that the increase of either pre-loaded stress or heating-rate decreases the failure temperature. Metallographic analysis shows that high heating-rate may......
Effect of heating-rate on failure temperature of pre-loaded magnesium alloy LUO Ji(罗 吉)1, 2, CHEN Bin(陈 斌)1, 2, YUAN Quan(袁 权)1, 2, ZHANG Ding-fei(张丁非)3, QUAN Guo-zheng(权国政)3 1. College... of the material. Key words: magnesium alloy AZ31; pre-loaded stress; heating rate; failure temperature; local thermal inconsistency 1 Introduction It is known that the high and rapid increase......
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Coupled Effects of Temperature Gradient and Oxidation on the Thermal Barrier Coating Failure Y.C.Zhou1,T.Hashida1 (1.Fracture Research Institute, Tohoku University, Sendai, Japan;2.Institute of Fundamental Mechanics and Material Engineering, Xiangtan University,Xiangtan, Hunan, 411105, P. R. China) 摘要:The present article reviews the investigation about the coupled effects of temperature......
Molecular dynamics simulation on plasticity deformation mechanism and failure near void for magnesium alloy ZENG Xiang-guo(曾祥国), XU Shu-sheng(许书生), CHEN Hua-yan(陈华燕), LI Ji-liang(李济良) College... of the magnesium alloy specimen with only a void. The void growth and crystal failure processes for hexagonal close-packed (hcp) structure were observed. The calculating results reveal......
J. Cent. South Univ. (2017) 24: 2487-2495 DOI: https://doi.org/10.1007/s11771-017-3661-z Strength and failure characteristics of sandstone containing two circular holes filled with two types... as filling modes on their strength properties and failure modes. The results show that the initial cracks can be categorized as wing crack, axial tensile crack and curved tensile crack. The failure......
Analysis of High-temperature Boiler Tube Failure for T91 &T22 WANG Zheng-pin1,DING Hui2,LIU Jiang-nan1,ZHAO Ling-song3,SHU Guo-gang2,ZHAO Yan-fen3,ZHANG Lu3,XUE Fei3 (1.Xi'an Institute... and SA213-T22. The results show that raw materials of SA213-T91 and SA213-T22 tube in superheater are qualified. Besides, the characteristics of the SA213-T91 and SA213-T22 tube failure are typical......
A damage-coupled multi-axial time-dependent low cycle fatigue failure model for SS304 stainless steel at high temperatureYujie LIU , Qing GAO and Guozheng KANG School of Mechanics and Engineering...-dependent constitutive model and fatigue failure model were proposed. In the model, the evolution equation of damage was introduced in and the time-dependent effects, e.g. holding time, loading rate, were......
the compression failure of concrete after high temperature and greatly improves the strength of concrete after high temperature, indicating that CFRP confinement can be used as an effective repair... J. Cent. South Univ. (2020) 27: 3807-3820 DOI: https://doi.org/10.1007/s11771-020-4563-z Unified strength model based on the Hoek-Brown failure criterion for fibre-reinforced polymer-confined pre......
significantly with the decrease of temperature, and the influence of vibrational frequency is relatively small. The failure strain and time of frozen clay show a tendency to increase firstly and then decrease with the decrease of temperature, and the decrease of temperature enhances the fragility of frozen clay. The failure strain energy of the frozen clay is an indicator to measure the ability......