Finite Element Programming for the Superposed Element Used to Analyze Consolidation of Soil

Shi Hong-yan; Liu Shan-shan

doi:10.3969/j.issn.1007-7162.2014.04.022

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Finite Element Programming for the Superposed Element Used to Analyze Consolidation of Soil

更新时间：2026-05-27

- Finite Element Programming for the Superposed Element Used to Analyze Consolidation of Soil
- Vol. 31, Issue 4, Pages: 115-120(2014)
- 作者机构：
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- DOI：10.3969/j.issn.1007-7162.2014.04.022
  CLC：
- Online First：28 December 2014，
  
  Published：2014
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史宏彦, 刘姗姗. 应用叠加单元分析固结问题的有限元程序设计方法[J]. 广东工业大学学报, 2014, 31(4): 115-120.

Shi Hong-yan, Liu Shan-shan. Finite Element Programming for the Superposed Element Used to Analyze Consolidation of Soil[J]. 2014, 31(4): 115-120.
史宏彦, 刘姗姗. 应用叠加单元分析固结问题的有限元程序设计方法[J]. 广东工业大学学报, 2014, 31(4): 115-120. DOI： 10.3969/j.issn.1007-7162.2014.04.022.

Shi Hong-yan, Liu Shan-shan. Finite Element Programming for the Superposed Element Used to Analyze Consolidation of Soil[J]. 2014, 31(4): 115-120. DOI： 10.3969/j.issn.1007-7162.2014.04.022.

摘要

为满足固结问题有限元分析中位移与孔压形函数不同阶次的需要，采用将两个几何形状和大小相同、结点数和布置方式及自由度数不同的单元叠加形成叠加单元.通过比较叠加单元与传统单元的异同点，给出了叠加单元有限元程序设计中关键问题的解决方法，对部分问题还给出了利用FORTRAN77编写的计算程序

并通过算例验证了方法的可行性.

Abstract

To meet the different order needs of displacement and pore-pressure shape functions in consolidation problem analysis

it used the superposed element

formed by superposing two elements with the same geometry but different nodal numbers and nodal degree of freedom numbers. Based on the careful comparison of the difference between the superposed element and the ordinary element

the programming method and some SUBROUTINEs designed by FORTRAN77 were given for the superposed element. The feasibility of the method has been proved by giving two examples.

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