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Theoretical and experimental analyses of casing collapsing strength under non-uniform loadingLIN Yuan-hua(林元华)1,2, DENG Kuan-hai(邓宽海)1, ZENG De-zhi(曾德智)1, ZHU Hong-jun(朱红钧)3, ZHU Da-jiang(朱达江)1, QI...:Failure data from oilfield showed that casings which were designed according to API standards were deformed and collapsed in salt formations. The main reason for decrease in strength may be caused by non......
Influence of yield-to-tensile strength ratio (Y/T) on failure assessment of defect-free and corroded X70 steel pipelineZHANG Shun-hu(章顺虎)1, 2, ZHAO De-wen(赵德文)1, WANG Xiao-nan(王晓南)2(1. State Key... strength ratio (Y/T) on failure pressure of X70 pipeline without and with corrosion defects was investigated. The stress-strain response of materials was characterized by a power-law hardening curve......
J. Cent. South Univ. (2012) 19: 2323-2332 DOI: 10.1007/s11771-012-1278-9 Low secondary compressibility and shear strength of Shanghai Clay LI Qing(李青)1, C. W. W. NG(吴宏伟)1, LIU Guo-bin(刘国彬)2 1... and undrained shear strength of Shanghai Clay, a series of one-dimensional consolidation tests (some up to 70 d) and undrained triaxial tests on high-quality intact and reconstituted soil specimens were......
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Strength distribution at interface of rotary-friction-welded aluminum to nodular cast iron SONG Yu-lai(宋雨来), LIU Yao-hui(刘耀辉), ZHU Xian-yong(朱先勇), YU Si-rong(于思荣), ZHANG Ying-bo(张英波) Key.... The bond strength of the interface was measured by the tensile tests and the morphology of the fracture surface was observed by SEM. The observation of the interface reveals that there are two distinct......
J. Cent. South Univ. (2016) 23: 1007-1014 DOI: 10.1007/s11771-016-3149-2 Dynamic recrystallization behavior and kinetics of high strength steel WU Guang-liang(吴光亮), ZHOU Chao-yang(周超洋), LIU Xin-bin... recrystallization behavior of high strength steel during hot deformation was investigated. The hot compression test was conducted in the temperature range of 950-1150 °C under strain rates of 0.1, 1......
Influence of moisture content on shearing strength of unsaturated undisturbed quaternary system middle pleistoceneZHONG Zu-liang(钟祖良)1, 2, 3, LIU Yuan-xue(刘元雪)3, LIU Xin-rong(刘新荣)1, 2, LI Xiao-yong... middle pleistocene loess, a typical unsaturated soil, often occurs in the implementation of western development strategy. To obtain the shearing strength characteristics of this unsaturated......
Reliability and sensitivity of bogie frame of high-speed train with strength degradationLü Hao(吕昊)1, ZHANG Yi-min(张义民)1, ZHANG Xu-fang(张旭方)1, LU Hao(卢昊)2(1. School of Mechanical Engineering.... The equivalent load method was employed to account for random repeated loads in structural reliability analysis. Degradation of material strength was regarded as a Gamma process. The probabilistic......
Effect of anions on stress corrosion cracking behaviors of ultra-high strength steel 23Co14Ni12Cr3MoLIU Jian-hua(刘建华), WEN Chen(文陈), YU Mei(于美), LI Song-mei(李松梅), WANG Bing(王兵) (School of Materials Science and Engineering, Beihang University, Beijing 100191, China)Abstract:The effects of chloride, sulfate and carbonate anions on stress corrosion behaviors of ultra-high strength steel......
J. Cent. South Univ. (2021) 28: 1448-1458 DOI: https://doi.org/10.1007/s11771-021-4708-8 A new nonlinear empirical strength criterion for rocks under conventional triaxial compression XIE Shi-jie(谢... involved in reliability design and stability analysis of geotechnical engineering. In order to accurately evaluate the triaxial compressive strength of rocks under different confining pressures......