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Axisymmetric loading on nanoscale multilayered media
《结构与土木工程前沿(英文)》 2023年 第17卷 第1期 页码 152-164 doi: 10.1007/s11709-022-0895-0
关键词: functionally graded layer Gurtin–Murdoch surface elasticity multilayered medium size dependency stiffness matrix
Amir ALLAHBAKHSHI,Masih ALLAHBAKHSHI
《机械工程前沿(英文)》 2015年 第10卷 第2期 页码 187-197 doi: 10.1007/s11465-015-0339-9
In this paper, for the first time, the modified strain gradient theory is used as a new size-dependent Kirchhoff micro-plate model to study the effect of interlayer van der Waals (vdW) force for the vibration analysis of multilayered graphene sheets (MLGSs). The model contains three material length scale parameters, which may effectively capture the size effect. The model can also degenerate into the modified couple stress plate model or the classical plate model, if two or all of the material length scale parameters are taken to be zero. After obtaining the governing equations based on modified strain gradient theory via principle of minimum potential energy, as only infinitesimal vibration is considered, the net pressure due to the vdW interaction is assumed to be linearly proportional to the deflection between two layers. To solve the governing equation subjected to the boundary conditions, the Fourier series is assumed for w=w(x, y). To show the accuracy of the formulations, present results in specific cases are compared with available results in literature and a good agreement can be seen. The results indicate that the present model can predict prominent natural frequency with the reduction of structural size, especially when the plate thickness is on the same order of the material length scale parameter.
关键词: graphene van der Waals (vdW) force modi- fied strain gradient elasticity theory size effect parameter
Zhiyong AI, Wenze ZENG, Yichong CHENG, Chao WU
《结构与土木工程前沿(英文)》 2011年 第5卷 第2期 页码 171-179 doi: 10.1007/s11709-011-0103-0
关键词: uncoupled state space solution layered poroelastic medium three-dimensional consolidation anisotropic permeability compressible pore fluid
Preparation of solar selective absorbing CuO coating for medium temperature application
HUANG Qunwu, WANG Yiping, LI Jinhua
《化学科学与工程前沿(英文)》 2007年 第1卷 第3期 页码 256-260 doi: 10.1007/s11705-007-0046-0
关键词: photoelectron spectroscopy temperature pretreatment absorptivity microscopy
Ayaho MIYAMOTO, Risto KIVILUOMA, Akito YABE
《结构与土木工程前沿(英文)》 2019年 第13卷 第3期 页码 569-604 doi: 10.1007/s11709-018-0498-y
关键词: condition assessment short & medium span bridge structural health monitoring(SHM) long-term data collection system maintenance bridge performance information technology loading vehicle(public bus) in-situ loading
张基尧
《中国工程科学》 2011年 第13卷 第8期 页码 22-25
关键词: 大中型水利工程;项目管理;实践体会
Yunxia GAO, Lei WANG, Haiyan LI, Jing LIU
《能源前沿(英文)》 2014年 第8卷 第1期 页码 49-61 doi: 10.1007/s11708-013-0285-3
关键词: liquid metal cryogenics low melting point thermal management aircraft liquid cooling space exploration
HUANG Jinliang, HONG Huasheng, ZHANG Luoping
《环境科学与工程前沿(英文)》 2008年 第2卷 第3期 页码 333-339 doi: 10.1007/s11783-008-0035-7
Conrad BOTON, Éric ST-PIERRE, Gabriel LEFEBVRE
《工程管理前沿(英文)》 2020年 第7卷 第1期 页码 142-158 doi: 10.1007/s42524-019-0065-9
关键词: small- and medium-sized enterprises mobile computing mobile cloud computing information technology for construction construction site ethnographic action research
A real-life stability model for a large shield-driven tunnel in heterogeneous soft soils
Xinyu HU, Zixin ZHANG, Scott KIEFFER
《结构与土木工程前沿(英文)》 2012年 第6卷 第2期 页码 176-187 doi: 10.1007/s11709-012-0149-7
关键词: analytical solution shield-driven tunnel multilayered soil face stability
Blockchain-driven supply chain finance solution for small and medium enterprises
Jian LI, Shichao ZHU, Wen ZHANG, Lean YU
《工程管理前沿(英文)》 2020年 第7卷 第4期 页码 500-511 doi: 10.1007/s42524-020-0124-2
关键词: blockchain technology supply chain finance risk management smart contract decentralization
Alireza DANESHYAR, Hamid MOHAMMADNEZHAD, Mohsen GHAEMIAN
《结构与土木工程前沿(英文)》 2021年 第15卷 第2期 页码 346-363 doi: 10.1007/s11709-021-0694-z
关键词: soil–structure interaction massed foundation radiation damping anisotropic damage
Seismic experimental study on a concrete pylon from a typical medium span cable-stayed bridge
Yan XU, Shijie ZENG, Xinzhi DUAN, Dongbing JI
《结构与土木工程前沿(英文)》 2018年 第12卷 第3期 页码 401-411 doi: 10.1007/s11709-018-0464-8
According to the current seismic design codes of bridges in China, cable-stayed bridges have been usually required to remain elastic even subjected to strong earthquakes. However, the possibilities of pylon plastic behavior were revealed in recent earthquake damages. The lack of due diligence in the nonlinear seismic behavior of the pylon has caused a blurry understanding about the seismic performance of such widely built though less strong earthquake experienced structures. In light of this point, a 1/20 scaled concrete pylon model which from a typical medium span cable-stayed bridge was designed and tested on the shaking table longitudinally. The dynamic response and seismic behavior of the pylon were measured, evaluated and compared to reveal its vulnerable parts and nonlinear seismic performance. The results show that most parts of the concrete pylon remain elastic even under very strong excitations, which means a sufficient safety margin for current pylon longitudinal design. The most vulnerable parts of the pylon appeared first at the pylon bottom region, cracks opening and closing at the pylon bottom were observed during the test, and then extended to the lower column and middle column around the lower strut.
关键词: cable-stayed bridge pylon shaking table test seismic behavior
Vibration analysis of medium and small span bridges subjected to mixed marshalling freight trains
LI Qi, WU Dingjun, HUANG Xiaobin
《结构与土木工程前沿(英文)》 2008年 第2卷 第2期 页码 133-138 doi: 10.1007/s11709-008-0019-5
关键词: train-bridge vibration vibration characteristic associated computer train-bridge phenomenon
标题 作者 时间 类型 操作
Vibration analysis of nano-structure multilayered graphene sheets using modified strain gradient theory
Amir ALLAHBAKHSHI,Masih ALLAHBAKHSHI
期刊论文
Uncoupled state space solution to layered poroelastic medium with anisotropic permeability and compressible
Zhiyong AI, Wenze ZENG, Yichong CHENG, Chao WU
期刊论文
Preparation of solar selective absorbing CuO coating for medium temperature application
HUANG Qunwu, WANG Yiping, LI Jinhua
期刊论文
Frontier of continuous structural health monitoring system for short & medium span bridges and condition
Ayaho MIYAMOTO, Risto KIVILUOMA, Akito YABE
期刊论文
Liquid metal as energy transportation medium or coolant under harsh environment with temperature below
Yunxia GAO, Lei WANG, Haiyan LI, Jing LIU
期刊论文
Control division of agricultural non-point source pollution at medium-sized watershed scale in Southeast
HUANG Jinliang, HONG Huasheng, ZHANG Luoping
期刊论文
Should medium-sized contractors still implement home-made information technologies on construction sites
Conrad BOTON, Éric ST-PIERRE, Gabriel LEFEBVRE
期刊论文
A real-life stability model for a large shield-driven tunnel in heterogeneous soft soils
Xinyu HU, Zixin ZHANG, Scott KIEFFER
期刊论文
Blockchain-driven supply chain finance solution for small and medium enterprises
Jian LI, Shichao ZHU, Wen ZHANG, Lean YU
期刊论文
Effect of seismic wave propagation in massed medium on rate-dependent anisotropic damage growth in concrete
Alireza DANESHYAR, Hamid MOHAMMADNEZHAD, Mohsen GHAEMIAN
期刊论文
Seismic experimental study on a concrete pylon from a typical medium span cable-stayed bridge
Yan XU, Shijie ZENG, Xinzhi DUAN, Dongbing JI
期刊论文