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Guizhong XIE, Fenglin ZHOU, Hao LI, Xiaoyu WEN, Fannian MENG
《机械工程前沿(英文)》 2019年 第14卷 第3期 页码 332-341 doi: 10.1007/s11465-019-0540-3
关键词: Taylor expansion crack front elements stress intensity factors dual boundary element method
Amin MANOUCHEHRIAN, Mohammad Fatehi MARJI, Mohsen MOHEBBI
《结构与土木工程前沿(英文)》 2012年 第6卷 第4期 页码 385-392 doi: 10.1007/s11709-012-0173-7
关键词: indirect boundary element method finite element method displacement tunnel case study
LIANG Xinhua, ZHU Ping, LIN Zhongqin, ZHANG Yan
《机械工程前沿(英文)》 2007年 第2卷 第1期 页码 99-103 doi: 10.1007/s11465-007-0017-7
关键词: harshness automotive prototype structural optimization vibration efficient
Jaroon RUNGAMORNRAT, Chung Nguyen VAN
《结构与土木工程前沿(英文)》 2019年 第13卷 第1期 页码 201-214 doi: 10.1007/s11709-018-0488-0
关键词: multi-field problems defining curve exact geometry general boundary conditions SBFEM
DU Jianguo, LIN Gao
《结构与土木工程前沿(英文)》 2008年 第2卷 第4期 页码 336-342 doi: 10.1007/s11709-008-0054-2
关键词: structure-foundation interface computational efficiency different suitable numerical approach
Guizhong XIE,Dehai ZHANG,Jianming ZHANG,Fannian MENG,Wenliao DU,Xiaoyu WEN
《机械工程前沿(英文)》 2016年 第11卷 第4期 页码 412-422 doi: 10.1007/s11465-016-0396-8
As a widely used numerical method, boundary element method (BEM) is efficient for computer aided engineering (CAE). However, boundary integrals with near singularity need to be calculated accurately and efficiently to implement BEM for CAE analysis on thin bodies successfully. In this paper, the distance in the denominator of the fundamental solution is first designed as an equivalent form using approximate expansion and the original sinh method can be revised into a new form considering the minimum distance and the approximate expansion. Second, the acquisition of the projection point by Newton-Raphson method is introduced. We acquire the nearest point between the source point and element edge by solving a cubic equation if the location of the projection point is outside the element, where boundary integrals with near singularity appear. Finally, the subtriangles of the local coordinate space are mapped into the integration space and the sinh method is applied in the integration space. The revised sinh method can be directly performed in the integration element. A verification test of our method is proposed. Results demonstrate that our method is effective for regularizing the boundary integrals with near singularity.
关键词: computer aided engineering (CAE) boundary element method (BEM) near singularity sinh method coordinate transformation integration space
Zhengyi JIANG,
《机械工程前沿(英文)》 2010年 第5卷 第1期 页码 52-60 doi: 10.1007/s11465-009-0087-9
关键词: rib inclined contact boundary condition ribbed strip extremely thin elements pulling down of rib height finite element modelling
Study of an artificial boundary condition based on the damping-solvent extraction method
Qiang XU, Jianyun CHEN, Jing LI, Mingming WANG
《结构与土木工程前沿(英文)》 2012年 第6卷 第3期 页码 281-287 doi: 10.1007/s11709-012-0167-5
关键词: damping-solvent extraction method structure-unlimited-foundation system spring-damper system artificial damping limited region finite element method
Chung Nguyen VAN
《结构与土木工程前沿(英文)》 2019年 第13卷 第1期 页码 92-102 doi: 10.1007/s11709-018-0472-8
关键词: exact geometry circular defining curve general boundaries SBFEM
Explicit optimization method for cutting-screw-thread on the basis of dual-RSM
Zhengbao LEI, Shubin WEI, Qingyun DU
《机械工程前沿(英文)》 2010年 第5卷 第4期 页码 423-430 doi: 10.1007/s11465-010-0109-7
关键词: vehicle engineering crash safety explicit method response surface method
Gui-Rong Liu
《结构与土木工程前沿(英文)》 2019年 第13卷 第2期 页码 456-477 doi: 10.1007/s11709-019-0519-5
The smoothed finite element method (S-FEM) was originated by G R Liu by combining some meshfree techniques with the well-established standard finite element method (FEM). It has a family of models carefully designed with innovative types of smoothing domains. These models are found having a number of important and theoretically profound properties. This article first provides a concise and easy-to-follow presentation of key formulations used in the S-FEM. A number of important properties and unique features of S-FEM models are discussed in detail, including 1) theoretically proven softening effects; 2) upper-bound solutions; 3) accurate solutions and higher convergence rates; 4) insensitivity to mesh distortion; 5) Jacobian-free; 6) volumetric-locking-free; and most importantly 7) working well with triangular and tetrahedral meshes that can be automatically generated. The S-FEM is thus ideal for automation in computations and adaptive analyses, and hence has profound impact on AI-assisted modeling and simulation. Most importantly, one can now purposely design an S-FEM model to obtain solutions with special properties as wish, meaning that S-FEM offers a framework for design numerical models with desired properties. This novel concept of numerical model on-demand may drastically change the landscape of modeling and simulation. Future directions of research are also provided.
关键词: computational method finite element method smoothed finite element method strain smoothing technique smoothing domain weakened weak form solid mechanics softening effect upper bound solution
《结构与土木工程前沿(英文)》 2022年 第16卷 第1期 页码 75-85 doi: 10.1007/s11709-021-0798-5
Liansuo AN , Zhi WANG , Zhonghe HAN ,
《能源前沿(英文)》 2009年 第3卷 第3期 页码 254-261 doi: 10.1007/s11708-009-0047-4
关键词: wet steam two-phase flow spontaneous condensation numerical simulation flow separation profile loss
3D mode discrete element method with the elastoplastic model
Wei HU, Feng JIN, Chong ZHANG, Jinting WANG
《结构与土木工程前沿(英文)》 2012年 第6卷 第1期 页码 57-68 doi: 10.1007/s11709-012-0139-9
关键词: mode discrete element method elastoplastic numerical method discontinuum contact
Applying the spectral stochastic finite element method in multiple-random field RC structures
Abbas YAZDANI
《结构与土木工程前沿(英文)》 2022年 第16卷 第4期 页码 434-447 doi: 10.1007/s11709-022-0820-6
关键词: uncertainty spectral stochastic finite element method correlation length reliability assessment reinforced concrete beam/slab
标题 作者 时间 类型 操作
non-conforming crack front elements of quadrilateral and triangular types for 3D crack problems using the boundaryelement method
Guizhong XIE, Fenglin ZHOU, Hao LI, Xiaoyu WEN, Fannian MENG
期刊论文
Comparison of indirect boundary element and finite element methods A case study: Shiraz-Esfahan railway
Amin MANOUCHEHRIAN, Mohammad Fatehi MARJI, Mohsen MOHEBBI
期刊论文
Acoustic analysis of lightweight auto-body based on finite element method and boundary element method
LIANG Xinhua, ZHU Ping, LIN Zhongqin, ZHANG Yan
期刊论文
Scaled boundary finite element method with exact defining curves for two-dimensional linear multi-field
Jaroon RUNGAMORNRAT, Chung Nguyen VAN
期刊论文
Improved numerical method for time domain dynamic structure-foundation interaction analysis based onscaled boundary finite element method
DU Jianguo, LIN Gao
期刊论文
Implementation of sinh method in integration space for boundary integrals with near singularity in potential
Guizhong XIE,Dehai ZHANG,Jianming ZHANG,Fannian MENG,Wenliao DU,Xiaoyu WEN
期刊论文
Ribbed strip rolling by three-dimensional finite element method combining extremely thin array of elements
Zhengyi JIANG,
期刊论文
Study of an artificial boundary condition based on the damping-solvent extraction method
Qiang XU, Jianyun CHEN, Jing LI, Mingming WANG
期刊论文
investigation of circle defining curve for two-dimensional problem with general boundaries using the scaled boundaryfinite element method
Chung Nguyen VAN
期刊论文
Explicit optimization method for cutting-screw-thread on the basis of dual-RSM
Zhengbao LEI, Shubin WEI, Qingyun DU
期刊论文
The smoothed finite element method (S-FEM): A framework for the design of numerical models for desired
Gui-Rong Liu
期刊论文
A new meshless approach for bending analysis of thin plates with arbitrary shapes and boundary conditions
期刊论文
Numerical study and control method of interaction of nucleation and boundary layer separation in condensing
Liansuo AN , Zhi WANG , Zhonghe HAN ,
期刊论文
3D mode discrete element method with the elastoplastic model
Wei HU, Feng JIN, Chong ZHANG, Jinting WANG
期刊论文