Secondary development of a viscoelasto-plastic rheological constitutive model of rock based on FLAC3D

CHU Wei-jiang; XU Wei-ya; YANG Sheng-qi; ZHOU Wei-yuan

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Secondary development of a viscoelasto-plastic rheological constitutive model of rock based on FLAC3D

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- Secondary development of a viscoelasto-plastic rheological constitutive model of rock based on FLAC3D
- Vol. 27, Issue 11, (2006)
- 作者机构：
  
  1. 河海大学岩土工程研究所,南京,210098
  2. 清华大学水利水电工程系,北京,100084
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU485+.3
- Online First：04 December 2013，
  
  Published：2006
- 稿件说明：
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CHU Wei-jiang, XU Wei-ya, YANG Sheng-qi, et al. Secondary development of a viscoelasto-plastic rheological constitutive model of rock based on FLAC3D[J]. 2006, 27(11).
DOI：

CHU Wei-jiang, XU Wei-ya, YANG Sheng-qi, et al. Secondary development of a viscoelasto-plastic rheological constitutive model of rock based on FLAC3D[J]. 2006, 27(11). DOI：

摘要

由于岩土介质的复杂多样性，通用分析软件所提供的岩石流变本构模型往往不能满足工程实际数值分析的需要。依据FLAC3D（Version 2.1）所提供的二次开发程序接口，结合西原黏弹塑性流变模型分析了二次开发程序运行的基本原理，给出了西原流变模型具体实施的程序框图和代码编写中应该注意的几个关键技术。通过一个简单的算例验证了程序编制的正确性与可靠性。由于采用了面向对象的程序技术，FLAC3D二次开发接口更加简单实用，提供的研究思路可为其他流变本构模型的二次开发提供参考。

Abstract

Because of the complexity and variety of geotechnical material

the rheology constitutive models put forward by existing FEM software can’t usually satisfy the requirement of actual numerical analysis. In accordance with fundamental code-run-principle of FLAC3D Version 2.1 software

the basic principle of the secondary development program running is made

and detailed analysis combined with the Nishihara viscoelasto-plastic rheological model is given. The program flow diagram on the special execution of Nishihara rheological model and several case technique that should be taken into account in the process of code compiling is given. At the same time

an easy case is used to verify the right and credibility of program compiling. The Secondary development environment is more friendly and effective with the support of object-oriented approach. Therefore

proposed design mode can bring forward references for the secondary development of other rheological models.

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