Improving accuracy and efficiency of stress analysis using scaled boundary finite elements

被引：6
|
作者：
Lin, Gao [1 ]
Pang, Lin [1 ]
Hu, Zhiqiang [1 ]
Zhang, Yong [2 ]
机构：
[1] Dalian Univ Technol, Fac Infrastruct Engn, Dalian 116024, Peoples R China
[2] Chinese Acad Sci, Inst Nucl Energy Safety Technol, Hefei 230031, Peoples R China
来源：
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 2016年 / 67卷
基金：
中国国家自然科学基金;
关键词：
Stress analysis; SBFEM; NURBS; Polygon elements; Stress concentration; Refinement; ISOGEOMETRIC ANALYSIS; NURBS; GEOMETRY; CAD;
D O I：
10.1016/j.enganabound.2016.03.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The scaled boundary finite element method (SBFEM) is a fundamental-solution-less boundary element method, which leads to semi-analytical solutions for stress fields. As only the boundary is discretized, the spatial dimension is reduced by one. In this paper, the SBFEM based polygon elements are utilized to improve the accuracy and efficiency of stress analysis. It retains the attractive feature of the SBFEM in solving problems with unbounded media and singularities. In addition, polygon elements are more flexible in meshing and mesh transition. Various measures which help improving accuracy or efficiency of the stress analysis, i.e. refining polygon mesh, nodal enrichment, appropriate placing of the scaling center, merging polygon elements and NURBS enhanced curved boundaries are discussed and compared. As a result, further insight into the refinement and improvement strategies for stress analysis is provided. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：26 / 42
页数：17
相关论文
共 50 条
  • [31] TURBULENT BOUNDARY-LAYER ANALYSIS USING FINITE-ELEMENTS
    SHARMA, M
    CAREY, GF
    INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 1986, 6 (11) : 769 - 787
  • [32] A scaled boundary finite element formulation for dynamic elastoplastic analysis
    Yang, Z. J.
    Yao, F.
    Ooi, E. T.
    Chen, X. W.
    INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 2019, 120 (04) : 517 - 536
  • [33] Sensitivity analysis of the scaled boundary finite element method for elastostatics
    Long, X. Y.
    Jiang, C.
    Han, X.
    Gao, W.
    Bi, R. G.
    COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 2014, 276 : 212 - 232
  • [34] Isogeometric analysis based on scaled boundary finite element method
    Zhang, Y.
    Lin, G.
    Hu, Z. Q.
    9TH WORLD CONGRESS ON COMPUTATIONAL MECHANICS AND 4TH ASIAN PACIFIC CONGRESS ON COMPUTATIONAL MECHANICS, 2010, 10
  • [35] Accuracy and Convergence Rate Comparative Investigation on Polytope Smoothed and Scaled Boundary Finite Element
    Phungpaingam, Boonchai
    Piyaphipat, Suthee
    Musiket, Kamtornkiat
    JOURNAL OF APPLIED AND COMPUTATIONAL MECHANICS, 2023, 9 (01): : 226 - 238
  • [36] Modelling of crack propagation for composite materials based on polygon scaled boundary finite elements
    Shi, Ming-Guang
    Xu, Yan-Jie
    Zhong, Hong
    Tat, Ooi Ean
    Zhang, Chu-Han
    Gongcheng Lixue/Engineering Mechanics, 2014, 31 (07): : 1 - 7
  • [37] Improving the efficiency of GBT displacement-based finite elements
    Goncalves, Rodrigo
    Camotim, Dinar
    THIN-WALLED STRUCTURES, 2017, 111 : 165 - 175
  • [38] Thermoelastic fracture analysis of functionally graded materials using the scaled boundary finite element method
    Iqbal, M. D.
    Birk, C.
    Ooi, E. T.
    Pramod, A. L. N.
    Natarajan, S.
    Gravenkamp, H.
    Song, C.
    ENGINEERING FRACTURE MECHANICS, 2022, 264
  • [39] Stress recovery and error estimation for the scaled boundary finite-element method
    Deeks, AJ
    Wolf, JP
    INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 2002, 54 (04) : 557 - 583
  • [40] Transient analysis of wave propagation in layered soil by using the scaled boundary finite element method
    Chen, Xiaojun
    Birk, Carolin
    Song, Chongmin
    COMPUTERS AND GEOTECHNICS, 2015, 63 : 1 - 12
12345