The Variational Principle and Application of Numerical Manifold Method
-
摘要: 针对线弹性体静力问题,根据数值流形方法的特点及相应的位移模式,得到了面向物理覆盖的数值流形方法的变分原理,详细推导了基于变分原理的数值流形方法的理论计算公式,建立了数值流形方法的控制方程。作为实际应用,给出了相应的数值算例,结果表明,求解精度和效益令人满意。Abstract: The physical-cover-oriented variational principle of numerical manifold method(NMM)for the analysis of linear elastic static problems was put forward according to the displacement model and the characters of numerical manifold method.The thoeretical calculating formulations and the controlling equation of NMM were derived.As an example,the plate with a hole in the center is calculated and the results show that the solution precision and efficiency of NMM are agreeable.
-
Key words:
- variational principle /
- numerical manifold method /
- numerical analysis
-
[1] 鹫津久一郎. 弹性和塑性力学中的变分法[M]. 老亮,郝松林译. 北京:科学出版社,1984,30-56. [2] 张汝清. 固体力学变分原理及其应用[M]. 重庆:重庆大学出版社,1991,29-45. [3] 石根华. 数值流形方法与非连续变形分析[M]. 裴觉民译. 北京:清华大学出版社,1997,3-22. [4] 王芝根,李云鹏. 数值流形方法中的几点改进[J]. 岩土工程学报,1998,20(1):33-36. [5] 裴觉民. 数值流形方法与非连续变形分析[J]. 岩石力学与工程学报,199 7,16(3):279-292. [6] 朱以文,曾又林,陈明祥. 岩石大变形分析的增量流形方法[J]. 岩石力学与工程学报,1999,18(1):1-5.
计量
- 文章访问数: 2947
- HTML全文浏览量: 117
- PDF下载量: 833
- 被引次数: 0