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Parametric analysis and design equation of ultimate capacity for unstiffened overlapped CHS K-joints
CHEN Yu, ZHAO Xianzhong, CHEN Yiyi
《结构与土木工程前沿(英文)》 2008年 第2卷 第2期 页码 107-115 doi: 10.1007/s11709-008-0014-x
关键词: regression analysis consistent unstiffened plasticity overlapped
The convexity about ultimate bearing hypersurfaces of structures
Chengxi GUO,Tingting GUO
《结构与土木工程前沿(英文)》 2016年 第10卷 第4期 页码 456-461 doi: 10.1007/s11709-016-0334-1
关键词: service limit load ultimate bearing surface convexity generalized force generalized displacement frame structure
Stability analysis of large diameter thin-walled tube beam-columns
PAN Hanming, GUO Yanlin, LIANG Shuo, PEI Shengxing, LIANG Weisheng, WANG Lewen
《结构与土木工程前沿(英文)》 2008年 第2卷 第2期 页码 123-132 doi: 10.1007/s11709-008-0017-7
关键词: ultimate strength nonlinear numerical analytical diameter thin-walled practice
万飞,张德华
《中国工程科学》 2012年 第14卷 第1期 页码 46-50
通过数值计算软件FLAC3D对DX旋挖挤扩灌注桩(简称DX桩)群桩的承载性状和桩周土体的沉降规律进行了研究。分析了桩间距、承力盘布置对群桩极限承载力和沉降控制能力的影响,并比较了6根基桩的DX群桩和8根基桩的直桩群桩的极限承载力。研究结果表明:DX群桩的基桩具有DX单桩的受力性状。承力盘下方土体位移大于承力盘上方土体位移,盘腔上部出现临空面。3D(D为盘径)桩间距的承载力和沉降控制能力最佳。同一地层内,承力盘布置方式(平行、错开布置)对DX群桩的承载力影响甚微。6根基桩的DX群桩的极限承载力是8根基桩的直
Higher heating value prediction of torrefaction char produced from non-woody biomass
Nitipong SOPONPONGPIPAT,Dussadeeporn SITTIKUL,Unchana SAE-UENG
《能源前沿(英文)》 2015年 第9卷 第4期 页码 461-471 doi: 10.1007/s11708-015-0377-3
关键词: higher heating value correlation biomass proximate analysis ultimate analysis
Shaochun WANG, Xi JIANG, Yun BAI
《结构与土木工程前沿(英文)》 2019年 第13卷 第5期 页码 1200-1213 doi: 10.1007/s11709-019-0546-2
关键词: shield tunneling structural synthetic fiber concrete hand hole segment joint ultimate bearing capacity crack pattern
Ultimate load analysis of pretensioned inverted T-beams with circular web openings
Hock Tian CHENG , Bashar S. MOHAMMED , Kamal Nasharuddin MUSTAPHA ,
《结构与土木工程前沿(英文)》 2009年 第3卷 第3期 页码 262-271 doi: 10.1007/s11709-009-0031-4
Numerical investigation of the ultimate lateral resistance of piles in soft clay
Konstantinos P. TZIVAKOS,Michael J. KAVVADAS
《结构与土木工程前沿(英文)》 2014年 第8卷 第2期 页码 194-200 doi: 10.1007/s11709-014-0251-0
关键词: laterally loaded pile soft clay p?y curves finite element method (FEM)
Ultimate bearing capacity of strip footing resting on clay soil mixed with tire-derived aggregates
《结构与土木工程前沿(英文)》 2021年 第15卷 第4期 页码 1016-1024 doi: 10.1007/s11709-021-0751-7
关键词: kaolin physical modeling tests stabilization numerical modeling
Yasser SHARIFI, Ali Akbar MAGHSOUDI
《结构与土木工程前沿(英文)》 2014年 第8卷 第1期 页码 46-56 doi: 10.1007/s11709-014-0237-y
关键词: high-strength concrete (HSC) members flexural behavior reinforced concrete experimental results ultimate moment
闫东明,林皋
《中国工程科学》 2007年 第9卷 第6期 页码 64-70
对设计强度为10MPa的混凝土立方体试件进行三轴压缩试验,系统研究了等围压条件下混凝土的强 度和变形特性,围压分别为0,4,8,12,16MPa5个量级;同时研究了不等围压条件下混凝土强度变化特性, 试验表明,随着围压增加,混凝土的极限抗压强度有明显增强的趋势;随着小主应力的增加,中主应力的影响 有减弱的趋势;峰值应力处应变随围压增加幅度显著。得出了在不同恒定围压下混凝土的应力应变全过程曲线; 通过与当前文献资料的对比分析,指出了在混凝土结构计算中适用的强度及变形表达式,为工程实践提供了 依据。
Function and principle innovative design of mechanical products based on TRIZ/FA
YUAN Feng, WANG Tai-yong, NIE Hui-juan
《机械工程前沿(英文)》 2006年 第1卷 第3期 页码 350-355 doi: 10.1007/s11465-006-0031-1
关键词: TRI principle solving product principle innovation ultimate innovation
Mohammad Sadegh ES-HAGHI, Aydin SHISHEGARAN, Timon RABCZUK
《结构与土木工程前沿(英文)》 2020年 第14卷 第5期 页码 1110-1130 doi: 10.1007/s11709-020-0643-2
关键词: optimization steel frame Asymmetric Genetic Algorithm constraints of ultimate load constraints of serviceability limits penalty function
Biranchi PANDA,A. GARG,Zhang JIAN,Akbar HEIDARZADEH,Liang GAO
《机械工程前沿(英文)》 2016年 第11卷 第3期 页码 289-298 doi: 10.1007/s11465-016-0393-y
Friction stir welding (FSW) process has gained attention in recent years because of its advantages over the conventional fusion welding process. These advantages include the absence of heat formation in the affected zone and the absence of large distortion, porosity, oxidation, and cracking. Experimental investigations are necessary to understand the physical behavior that causes the high tensile strength of welded joints of different metals and alloys. Existing literature indicates that tensile properties exhibit strong dependence on the rotational speed, traverse speed, and axial force of the tool that was used. Therefore, this study introduces the experimental procedure for measuring tensile properties, namely, ultimate tensile strength (UTS) and tensile elongation of the welded AA 7020 Al alloy. Experimental findings suggest that a welded part with high UTS can be achieved at a lower heat input compared with the high heat input condition. A numerical approach based on genetic programming is employed to produce the functional relationships between tensile properties and the three inputs (rotational speed, traverse speed, and axial force) of the FSW process. The formulated models were validated based on the experimental data, using the statistical metrics. The effect of the three inputs on the tensile properties was investigated using 2D and 3D analyses. A high UTS was achieved, including a rotational speed of 1050 r/min and traverse speed of 95 mm/min. The results also indicate that 8 kN axial force should be set prior to the FSW process.
关键词: tensile properties ultimate tensile strength tensile elongation friction stir welding tool rotational speed genetic programming welding speed
标题 作者 时间 类型 操作
Parametric analysis and design equation of ultimate capacity for unstiffened overlapped CHS K-joints
CHEN Yu, ZHAO Xianzhong, CHEN Yiyi
期刊论文
Stability analysis of large diameter thin-walled tube beam-columns
PAN Hanming, GUO Yanlin, LIANG Shuo, PEI Shengxing, LIANG Weisheng, WANG Lewen
期刊论文
Higher heating value prediction of torrefaction char produced from non-woody biomass
Nitipong SOPONPONGPIPAT,Dussadeeporn SITTIKUL,Unchana SAE-UENG
期刊论文
The influence of hand hole on the ultimate strength and crack pattern of shield tunnel segment joints
Shaochun WANG, Xi JIANG, Yun BAI
期刊论文
Ultimate load analysis of pretensioned inverted T-beams with circular web openings
Hock Tian CHENG , Bashar S. MOHAMMED , Kamal Nasharuddin MUSTAPHA ,
期刊论文
Numerical investigation of the ultimate lateral resistance of piles in soft clay
Konstantinos P. TZIVAKOS,Michael J. KAVVADAS
期刊论文
Ultimate bearing capacity of strip footing resting on clay soil mixed with tire-derived aggregates
期刊论文
An experimental study on the flexural behavior of heavily steel reinforced beams with high-strength concrete
Yasser SHARIFI, Ali Akbar MAGHSOUDI
期刊论文
Function and principle innovative design of mechanical products based on TRIZ/FA
YUAN Feng, WANG Tai-yong, NIE Hui-juan
期刊论文
Evaluation of a novel Asymmetric Genetic Algorithm to optimize the structural design of 3D regular and irregular steel frames
Mohammad Sadegh ES-HAGHI, Aydin SHISHEGARAN, Timon RABCZUK
期刊论文
Characterization of the tensile properties of friction stir welded aluminum alloy joints based on axial force, traverse speed, and rotational speed
Biranchi PANDA,A. GARG,Zhang JIAN,Akbar HEIDARZADEH,Liang GAO
期刊论文