大型三通三维有限元自动分析(Ⅰ)——载荷分析和单元分析
郁吉仁,岑章志,王勗成
摘要(Abstract)：
<正> 一、引言三通结构是管道系统中常见的部件。压力容器上开大孔并外接直管也是一种三通结构。对于薄壁小接管的三通,已有一些解析方法能得到良好的结果。但对于厚壁或大口径接管的三通,则很难求得解析解。随着有限元方法和计算机技术的发展,这个问题得到了有效地解决。早在六十年代就有人用三角形板壳元来分析三通应力。后来也有不少人用各种板壳
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作者(Author):
郁吉仁,岑章志,王勗成
参考文献(References)：
- [1] A. C. Eringen, A. K. Naghdi, C. E. Thiel, "State of stress in a circular cylindrical shell with a circular hole", Welding Research Council Bulletin, № 102, 1965
- [2] N. Prince, Y. R. Rashid, 'Structural analysis of shell intersections', First International Conference on Pressure Vessel Technology, Part I, p245--254, 1969
- [3] R. D. Leick, A. B. Potrin, 'Automatic mesh generation for tubular joint stress analysis', Computers and Structure, Vol. 7, p73--91, 1977
- [4] O. C. Zienkiewicz, 'The finite element method', 1977
- [5] 张东山,陆雪英,王宁怀,“高压三通的三维有限元分析”,中国机械工程学会压力容器学术会议论丈,078-80,1980
- [6] A. N. Gantayat, 'Finite element analysis of thin and thick walled tubular joints', Nucl. Engng. Des., Vol. 46, № 2, P 338--394, 1978
- [7] 'Numerical and Computer methods in structural mechanics' 1973
- [8] C. E. Taylor, N. N. Lind, 'photoelastic stndy of the stresses near openings in pressure Vessels', Welding Research Council Bulletin, № 113, P1--24, 1966