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Stress field near circular-arc interface crack tip based on electric saturation concept
Longchao DAI, Xinwei WANG
《机械工程前沿(英文)》 2009年 第4卷 第3期 页码 320-325 doi: 10.1007/s11465-009-0042-9
关键词: piezoelectric material arc crack strip saturation stress intensity factor
Analysis on annealing-induced stress of blind-via TSV using FEM
Jie SHAO, Tielin SHI, Li DU, Lei SU, Xiangning LU, Guanglan LIAO
《机械工程前沿(英文)》 2018年 第13卷 第3期 页码 401-410 doi: 10.1007/s11465-017-0457-7
Copper-filled through silicon via (TSV) is a promising material owing to its application in high-density three-dimensional (3D) packaging. However, in TSV manufacturing, thermo-mechanical stress is induced during the annealing process, often causing reliability issues. In this paper, the finite element method is employed to investigate the impacts of via shape and SiO2 liner uniformity on the thermo-mechanical properties of copper-filled blind-via TSV after annealing. Top interface stress analysis on the TSV structure shows that the curvature of via openings releases stress concentration that leads to ~60 MPa decrease of normal stresses, sxx and syy, in copper and ~70 MPa decrease sxx of in silicon. Meanwhile, the vertical interface analysis shows that annealing-induced stress at the SiO2/Si interface depends heavily on SiO2 uniformity. By increasing the thickness of SiO2 linear, the stress at the vertical interface can be significantly reduced. Thus, process optimization to reduce the annealing-induced stress becomes feasible. The results of this study help us gain a better understanding of the thermo-mechanical behavior of the annealed TSV in 3D packaging.
关键词: through silicon via (TSV) annealing-induced stress interface stress plastic deformation finite element method
陈志坚,游庆仲,林闽,李筱艳
《中国工程科学》 2002年 第4卷 第12期 页码 80-85
在阐述振弦式压力盒组成结构和测试原理的基础上,结合江阴大桥(封面)南锚碇基底应力监测实践,分析了振弦式压力盒在刚性接触面应力监测中的可行性和存在的问题,推导出压力盒率定系数的表达式,提出基于有限元模拟分析的压力盒实测资料修正方法,建立了修正系数与被测介质刚度的关系式。研究成果表明,在刚性接触面应力监测中,振弦式压力盒的实测值普遍明显偏小,甚至仅为理论值的十几分之一,其原因是压力盒的实际受力条件与率定受力条件有明确而明显的不同,被测介质刚度对压力盒测值有重要影响。
Effect of interface adhesion factor on the bearing capacity of strip footing placed on cohesive soil
《结构与土木工程前沿(英文)》 2021年 第15卷 第6期 页码 1494-1503 doi: 10.1007/s11709-021-0768-y
关键词: bearing capacity soil-rock interface Hoek−Brown yield criterion plasticity limit analysis
Bing LI,Xu GENG,Tong LU,Lei QIANG,Minghang LI
《机械工程前沿(英文)》 2015年 第10卷 第4期 页码 380-391 doi: 10.1007/s11465-015-0365-7
The interface wave traveling along the boundary of two materials has been studied for nearly a century. However, experiments, engineering applications, and interface wave applications to the non-destructive inspection of interlaminar composite have developed slowly. In this research, an experiment that applies Stoneley waves (a type of interfacial wave between two solid half-spaces) is implemented to detect the damage in a multilayer structure. The feasibility of this method is also verified. First, the wave velocity and wave structure of Stoneley waves at a perfectly bonded aluminum-steel interface are obtained by solving the Stoneley wave dispersion equation of two elastic half-spaces. Thereafter, an experiment is conducted to measure the Stoneley wave velocity of an aluminum-steel laminated beam and to locate interlaminar cracks by referring to the Stoneley wave velocity and echo wave time. Results indicate that the location error is less than 2%. Therefore, Stoneley waves show great potential as a non-destructive inspection method of a multilayer structure.
关键词: crack localization interface waves Stoneley waves interlaminar damage multilayer structure
Multi-objective optimization of surface texture for the slipperswash plate interface in EHA pumps
《机械工程前沿(英文)》 2022年 第17卷 第4期 doi: 10.1007/s11465-022-0704-4
关键词: electro-hydrostatic actuator axial piston pump slipper/swash plate interface multi-objective optimization surface texture
Thermal analysis of lubricated three-dimensional contact bodies considering interface roughness
《机械工程前沿(英文)》 2022年 第17卷 第2期 doi: 10.1007/s11465-022-0672-8
关键词: thermal elastohydrodynamic lubrication surface roughness effect thermal effect temperature characteristics severe conditions
《机械工程前沿(英文)》 2023年 第18卷 第1期 doi: 10.1007/s11465-022-0733-z
关键词: grinding minimum quantity lubrication carbon group nanofluid tribological mechanism
Jun WU,Xuemei LIU
《结构与土木工程前沿(英文)》 2015年 第9卷 第3期 页码 323-340 doi: 10.1007/s11709-015-0301-2
关键词: high strength concrete (SHS) engineered cementitious composite interface blast test strain rate effect
Yulu Wang, Dan Hu, Yanling Wu, Tianlei Ying
《医学前沿(英文)》 2020年 第14卷 第2期 页码 149-159 doi: 10.1007/s11684-020-0764-y
关键词: influenza virus neutralizing antibody hemagglutinin globular head region trimeric interface
Experimental study on behavior of mortar-aggregate interface after elevated temperatures
Wan WANG, Jianzhuang XIAO, Shiying XU, Chunhui WANG
《结构与土木工程前沿(英文)》 2017年 第11卷 第2期 页码 158-168 doi: 10.1007/s11709-016-0374-6
关键词: mortar-aggregate interface push-out test elevated temperatures modeled concrete (MC) modeled recycled aggregate concrete (MRAC)
《化学科学与工程前沿(英文)》 2022年 第16卷 第3期 页码 376-383 doi: 10.1007/s11705-021-2062-x
关键词: interface engineering CoS/CeO2 electrodeposition electrocatalyst oxygen evolution reaction
Behavior of compacted clay-concrete interface
R. R .SHAKIR, Jungao ZHU
《结构与土木工程前沿(英文)》 2009年 第3卷 第1期 页码 85-92 doi: 10.1007/s11709-009-0013-6
关键词: soil structure interaction simple shear test interface friction compacted clay interface modeling
《环境科学与工程前沿(英文)》 2022年 第16卷 第4期 doi: 10.1007/s11783-021-1480-9
• RED performance and stack resistance were studied by EIS and LSV.
关键词: Reverse electrodialysis Electrochemical impedance spectroscopy Concentration polarization Spacer shadow effect
标题 作者 时间 类型 操作
Stress field near circular-arc interface crack tip based on electric saturation concept
Longchao DAI, Xinwei WANG
期刊论文
Analysis on annealing-induced stress of blind-via TSV using FEM
Jie SHAO, Tielin SHI, Li DU, Lei SU, Xiangning LU, Guanglan LIAO
期刊论文
Effect of interface adhesion factor on the bearing capacity of strip footing placed on cohesive soil
期刊论文
Experimental verification of the interface wave method to detect interlaminar damage of a metal multilayer
Bing LI,Xu GENG,Tong LU,Lei QIANG,Minghang LI
期刊论文
Multi-objective optimization of surface texture for the slipperswash plate interface in EHA pumps
期刊论文
Thermal analysis of lubricated three-dimensional contact bodies considering interface roughness
期刊论文
Tribological mechanism of carbon group nanofluids on grinding interface under minimum quantity lubrication
期刊论文
Performance of soft-hard-soft (SHS) cement based composite subjected to blast loading with consideration of interface
Jun WU,Xuemei LIU
期刊论文
Recent advances in “universal” influenza virus antibodies: the rise of a hidden trimeric interface in
Yulu Wang, Dan Hu, Yanling Wu, Tianlei Ying
期刊论文
Experimental study on behavior of mortar-aggregate interface after elevated temperatures
Wan WANG, Jianzhuang XIAO, Shiying XU, Chunhui WANG
期刊论文
Interface engineering for enhancing electrocatalytic oxygen evolution reaction of CoS/CeO heterostructures
期刊论文
Tracing the impact of stack configuration on interface resistances in reverse electrodialysis by in situ
期刊论文