Two-dimensional Hermitian numerical manifold method
Two-dimensional Hermitian numerical manifold method
复制标题
二维埃尔米特数值流形方法
DOI:
10.1016/j.compstruc.2019.106178
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发表时间:
2020-03
影响因子:
4.7
通讯作者:
Liu Feng
中科院分区:
文献类型:
--
作者:
Liu Zhijun;Zhang Peng;Sun Cong;Liu Feng
Numerous approaches have been proposed to enhance the accuracy and convergence of the numerical manifold method (NMM) in recent years, but most, if not all, of these approaches cannot ensure C 1 continuity. Hermitian interpolation is an effective approach for obtaining high-order approximations. However, the requirement of rectangular meshes hinders the application of this approach in the finite element method. Taking advantage of the freedom in meshing in NMM, Hermitian interpolation is incorporated into NMM to obtain the C 1 approximation. In contrast to the common high-order NMM, the Hermitian NMM (HNMM) improves the accuracy and convergence without causing the linear dependence problem. Moreover, the degrees of freedom (DOFs) of the mathematical nodes inside the physical domain have physical meanings, and the strains at nodes can be obtained directly without the need for extra postprocessing. The proposed HNMM is verified by solving numerous benchmark linear elastic problems, and the results are compared against those of linear and cubic Lagrangian NMMs. The numerical solutions for these examples confirm the remarkable superiority of the HNMM over the Lagrangian NMMs in terms of accuracy, convergence and efficiency.
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影响因子:
6.4
作者:
Guo Hongwei;Zheng Hong
通讯作者:
Zheng Hong
影响因子:
4.7
作者:
S. Bordas;T. Rabczuk;N. Hung;Vinh Phu Nguyen;S. Natarajan;Tino Bog;Dongliang Quan;Nguyen Vinh Hiep-Nguyen-Vi
通讯作者:
S. Bordas;T. Rabczuk;N. Hung;Vinh Phu Nguyen;S. Natarajan;Tino Bog;Dongliang Quan;Nguyen Vinh Hiep-Nguyen-Vi
DOI:
10.1007/978-1-4613-4277-9_4
发表时间:
1976
期刊:
--
影响因子:
--
作者:
T. Dawson
通讯作者:
T. Dawson
影响因子:
2.9
作者:
K. Terada;M. Kurumatani
通讯作者:
K. Terada;M. Kurumatani
DOI:
10.1016/j.cma.2012.04.010
发表时间:
2012-08
影响因子:
7.2
作者:
An XM;Zhao ZY;Zhang HH;Li LX
通讯作者:
Li LX