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Stochastic analysis of laminated composite plate considering stochastic homogenization problem
S. SAKATA,K. OKUDA,K. IKEDA
《结构与土木工程前沿(英文)》 2015年 第9卷 第2期 页码 141-153 doi: 10.1007/s11709-014-0286-2
关键词: stochastic homogenization multiscale stochastic analysis microscopic random variation laminated composite plate
Chen WANG, Yuching WU, Jianzhuang XIAO
《结构与土木工程前沿(英文)》 2018年 第12卷 第4期 页码 461-473 doi: 10.1007/s11709-017-0441-7
关键词: RAC nano-indentation digital image multiscale microscopic randomness homogenization
Nhan NGUYEN-MINH, Nha TRAN-VAN, Thang BUI-XUAN, Trung NGUYEN-THOI
《结构与土木工程前沿(英文)》 2019年 第13卷 第2期 页码 251-272 doi: 10.1007/s11709-017-0456-0
关键词: homogenization corrugated panel asymptotic analysis smoothed finite element method (S-FEM) cell-based smoothed three-node Mindlin plate element (CS-MIN3)
混凝土中碱硅反应效应的多尺度均质化分析 Article
Roozbeh Rezakhani, Mohammed Alnaggar, Gianluca Cusatis
《工程(英文)》 2019年 第5卷 第6期 页码 1139-1154 doi: 10.1016/j.eng.2019.02.007
碱硅反应(ASR)是混凝土结构(如桥梁和水坝)在长期的高湿度环境下发生的主要劣化机制之一。ASR是骨料中活性硅成分与水泥浆中碱金属离子之间发生的一种化学反应。这种化学反应会产生ASR凝胶,该凝胶吸水后膨胀,造成混凝土损坏和开裂,最终导致混凝土力学性能下降。本研究基于晶格离散粒子模型(LDPM),研究了混凝土的ASR损伤。LDPM可在粗骨料尺度上模拟混凝土,它是一种中尺度力学模型。作者已经成功地利用LDPM框架对ASR建模,并且通过实验数据对所得模型ASR-LDPM进行了校准和验证。本研究将ASR-LDPM用作中尺度模型,并采用最新开发的多尺度均质化框架来模拟ASR的宏观尺度效应。作者首先分析了由ASR-LDPM模拟的混凝土代表性体积元(RVE)在拉伸和压缩两种情况下的均质化行为,并研究了ASR对混凝土有效力学性能的影响。接下来,作者利用已开发的均质化框架再现了关于混凝土棱柱体自由体积膨胀的实验数据。最后,作者通过中尺度模型和所提出的多尺度方法,评估了压缩和四点弯曲梁中棱柱体的强度退化现象,以分析后者的准确性和计算效率。在所有数值分析中,作者考虑了具有不同内部粒子划分的RVE大小,以探讨它们对均质化响应的影响。
New model of load transfer function for pile analysis based on disturbed state model
LIU Qijian, YANG Linde, WU Jun
《结构与土木工程前沿(英文)》 2007年 第1卷 第4期 页码 443-447 doi: 10.1007/s11709-007-0060-9
关键词: hardening homogenization displacement engineering Duncan-Zhang
Qingsheng YANG, Fang XU
《机械工程前沿(英文)》 2009年 第4卷 第3期 页码 284-288 doi: 10.1007/s11465-009-0067-0
关键词: composites hyperelastic finite deformation homogenization micromechanics
Connected morphable components-based multiscale topology optimization
Jiadong DENG, Claus B. W. PEDERSEN, Wei CHEN
《机械工程前沿(英文)》 2019年 第14卷 第2期 页码 129-140 doi: 10.1007/s11465-019-0532-3
关键词: multiscale topology optimization morphable component material microstructure homogenization
Two-scale modeling of granular materials: A FEM-FEM approach
Yun-Zhu CAI, Yu-Ching WU
《结构与土木工程前沿(英文)》 2013年 第7卷 第3期 页码 304-315 doi: 10.1007/s11709-013-0213-y
关键词: homogenization two-scale representative volume element compaction granular assembly finite element method
YUE Zhongqi
《结构与土木工程前沿(英文)》 2007年 第1卷 第1期 页码 80-93 doi: 10.1007/s11709-007-0008-0
关键词: homogeneous numerical analysis Expanded homogenization meso-level
Computational model generation and RVE design of self-healing concrete
Md. Shahriar QUAYUM,Xiaoying ZHUANG,Timon RABCZUK
《结构与土木工程前沿(英文)》 2015年 第9卷 第4期 页码 383-396 doi: 10.1007/s11709-015-0320-z
关键词: homogenization self-healing concrete (SHC) representative volume element multiscale modelling
Macro-architectured cellular materials: Properties, characteristic modes, and prediction methods
Zheng-Dong MA
《机械工程前沿(英文)》 2018年 第13卷 第3期 页码 442-459 doi: 10.1007/s11465-018-0488-8
Macro-architectured cellular (MAC) material is defined as a class of engineered materials having configurable cells of relatively large (i.e., visible) size that can be architecturally designed to achieve various desired material properties. Two types of novel MAC materials, negative Poisson’s ratio material and biomimetic tendon reinforced material, were introduced in this study. To estimate the effective material properties for structural analyses and to optimally design such materials, a set of suitable homogenization methods was developed that provided an effective means for the multiscale modeling of MAC materials. First, a strain-based homogenization method was developed using an approach that separated the strain field into a homogenized strain field and a strain variation field in the local cellular domain superposed on the homogenized strain field. The principle of virtual displacements for the relationship between the strain variation field and the homogenized strain field was then used to condense the strain variation field onto the homogenized strain field. The new method was then extended to a stress-based homogenization process based on the principle of virtual forces and further applied to address the discrete systems represented by the beam or frame structures of the aforementioned MAC materials. The characteristic modes and the stress recovery process used to predict the stress distribution inside the cellular domain and thus determine the material strengths and failures at the local level are also discussed.
关键词: architectured material cellular materials multi-scale modeling homogenization method effective material properties computational method
Qingpeng MENG, Yuching WU, Jianzhuang XIAO
《结构与土木工程前沿(英文)》 2018年 第12卷 第4期 页码 474-489 doi: 10.1007/s11709-017-0442-6
关键词: RAC Monte Carlo analysis stochastic finite pixel-element method homogenization coefficient of variation
标题 作者 时间 类型 操作
Stochastic analysis of laminated composite plate considering stochastic homogenization problem
S. SAKATA,K. OKUDA,K. IKEDA
期刊论文
Three-scale stochastic homogenization of elastic recycled aggregate concrete based on nano-indentation
Chen WANG, Yuching WU, Jianzhuang XIAO
期刊论文
Static analysis of corrugated panels using homogenization models and a cell-based smoothed mindlin plate
Nhan NGUYEN-MINH, Nha TRAN-VAN, Thang BUI-XUAN, Trung NGUYEN-THOI
期刊论文
New model of load transfer function for pile analysis based on disturbed state model
LIU Qijian, YANG Linde, WU Jun
期刊论文
Numerical modeling of nonlinear deformation of polymer composites based on hyperelastic constitutive law
Qingsheng YANG, Fang XU
期刊论文
Connected morphable components-based multiscale topology optimization
Jiadong DENG, Claus B. W. PEDERSEN, Wei CHEN
期刊论文
Digital representation of meso-geomaterial spatial distribution and associated numerical analysis of geomechanics: methods, applications and developments
YUE Zhongqi
期刊论文
Computational model generation and RVE design of self-healing concrete
Md. Shahriar QUAYUM,Xiaoying ZHUANG,Timon RABCZUK
期刊论文
Macro-architectured cellular materials: Properties, characteristic modes, and prediction methods
Zheng-Dong MA
期刊论文