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in the concrete structure changes continuously, time-varying shrinkage and creep can be considered using the effective modulus method to adjust loading age. According to Trost’s equation, there is (9...J. Cent. South Univ. (2016) 23: 470-478 DOI: 10.1007/s11771-016-3092-2 Coupling model for calculating prestress loss caused by relaxation loss, shrinkage, and creep of concrete CAO Guo-hui(曹国辉)1, HU......
and the developing tendency of creep age forming technology[J]. Journal of Plasticity Engineering, 2008, 15(3): 1-8. [2] 常荣福. 飞机钣金零件制造技术[M]. 北京: 国防工业出版社, 1992: 110-111. Chang Rongfu. Aircraft sheet metal parts...变时效成形有限元分析[J]. 塑性工程学报, 2009, 16(4): 129-133. Huang Shuo, Zeng Yuansong, Huang Xia. FE analysis of creep age forming for aluminum alloy 2324[J]. Journal of Plasticity Engineering, 2009, 16(4): 129-133......
]. Procedia Engineering, 2014, 81: 1780-1785. [11] ZHANG J, DENG Y L, ZHANG X M. Constitutive modeling for creep age forming of heat-treatable strengthening aluminum alloys containing plate or rod shaped precipitates [J]. Materials Science and Engineering A, 2013, 563: 8-15. [12] HO K C, LIN J G, DEAN T A. Constitutive modelling of primary creep for age forming an aluminium alloy [J]. Journal of Materials......
Shear creep parameters of simulative soil for deep-sea sedimentMA Wen-bo(马雯波), RAO Qiu-hua(饶秋华), LI Peng(李鹏), GUO Shuai-cheng(郭帅成), FENG Kang(冯康) (School of Civil Engineering, Central South... with water in order to find the best simulative soil for the deep-sea sediment collected from the Pacific C-C area. Shear creep characteristics of the simulative soil were studied by shear creep test......
of 7050 aluminum alloy for creep age forming[J]. Materials Science and Technology, 2014, 22(3): 28-33. [8] LIN Y C, JIANG Y Q, ZHOU H M, LIU G. A new creep constitutive model for 7075 aluminum alloy...蠕变数据的分布情况 Fig. 1 Distribution of steady state creep rate data of aluminum alloy 7075 将7075铝合金的蠕变数据标示在蠕变速率-持久时间的关系图2中,线性拟合已断裂数据的稳态蠕变速率,持久时间tr之间的数值关系,拟合线表达式为,线性相关系数= 0.9410,说明高强铝合金7075的稳态蠕变速率与持久时间......
J. Cent. South Univ. (2021) 28: 954-967 DOI: https://doi.org/10.1007/s11771-021-4656-3 Non-linear creep damage model of sandstone under freeze-thaw cycle LI Jie-lin(李杰林)1, 2, 3, ZHU Long-yin(朱龙胤)1... Nature 2021 Abstract: To study rock damage characteristics under long-term freeze-thaw cycles and loads, rock freeze-thaw and creep damage factors were defined based on nuclear magnetic resonance......
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Effect of spray forming on evolution of microstructure and mechanical behavior of Mg-9Al-1Zn alloy YU Hong-yan(余红燕)1, HUANG Jin-feng(黄进峰)1, LI Yong-bing(李永兵)1, CUI Hua(崔华)2, HE Jian-ping(何... was produced by spray forming and hot extruded at 698-723 K with an extrusion ratio of 22?1. The microstructural evolution was investigated systematically. The mechanisms of grain refinement, solubility......
Triaxial creep tests of weak sandstone from fracture zone of high dam foundationZHANG Yu(张玉)1, 2, XU Wei-ya(徐卫亚)2, GU Jin-jian(顾锦健)2, WANG Wei(王伟)2(1. College of Pipeline and Civil Engineering, China... at the dam foundation of a hydropower station is weak sandstone with poor integrity and pore cementation contact. Its creep properties have a significant impact on the deformation and stability......
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