MCVISC Rheological Model and Its Realization in FLAC<sup>3D</sup> Program

高文华; 刘正; 朱建群

doi:10.13409/j.cnki.jdpme.2015.02.013

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MCVISC Rheological Model and Its Realization in FLAC^3D Program

更新时间：2025-12-11

- MCVISC Rheological Model and Its Realization in FLAC^3D Program
- Vol. 35, Issue 2, Pages: 219-225(2015)
- 作者机构：
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- DOI：10.13409/j.cnki.jdpme.2015.02.013
  CLC： U45
- Published：2015
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[1]高文华,刘正,朱建群.岩石MCVISC流变模型及其在FLAC~(3D)程序中的实现[J].防灾减灾工程学报,2015,35(02):219-225.

高文华, 刘正, 朱建群. MCVISC Rheological Model and Its Realization in FLAC^3D Program[J]. 2015, 35(2): 219-225.
[1]高文华,刘正,朱建群.岩石MCVISC流变模型及其在FLAC~(3D)程序中的实现[J].防灾减灾工程学报,2015,35(02):219-225. DOI： 10.13409/j.cnki.jdpme.2015.02.013.

高文华, 刘正, 朱建群. MCVISC Rheological Model and Its Realization in FLAC^3D Program[J]. 2015, 35(2): 219-225. DOI： 10.13409/j.cnki.jdpme.2015.02.013.

摘要

进行了某地粉矿岩试件在单轴条件下分级增量循环加、卸载蠕变试验

得出该粉砂岩具有瞬弹、衰减蠕变、等速蠕变等阶段特征。通过对西原模型的改进

建立了一个能全面反映粉砂岩瞬弹、衰减蠕变、稳定蠕变的线性蠕变模型

即MCVISC模型。以此为基础

推导了蠕变本构模型三维状态下的有限差分形式。在Visual C++语言的环境下

利用FLAC3D所提供的二次开发接口进行了自定义模型的程序研制

给出了模型二次开发的程序流程和代码编写中的关键技术

并对程序的正确性和可靠性进行了验证和算例分析。结果表明

无论是应变量值还是蠕变整体变化趋势

数值模拟结果与室内蠕变试验结果吻合较好

说明了开发的蠕变本构模型的正确性和适用性。

Abstract

By means of stepwise incremental cycling loading and unloading

the test of siltstone specimen was done under uniaxial condition.The test results show that the siltstone possesses characteristics of instantaneous elasticity

decay

stable creep

etc.stages.The MCVISC creep model was set up which can overall reflect these properties through improved Nishihara model

and the creep constitutive model of finite difference form for three-dimensional state was deduced.Using second development program interface of FLAC3 Dwith the Visual C++language

the program of user-defined model was developed

and the program flowchart and the key technique of code compiling were given.At the same time

the correctness and reliability of program compiling were verified through cases.The results show that numerical simulating result coincides with test one for either strain level or overall tendancy of creep

which indicates that the developed model is effective and feasible.

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references

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考虑围岩性质劣化的深埋软弱隧道破坏机理数值模拟研究 [J]. 李英杰,张顶立,刘保国,房倩. 土木工程学报 . 2012(09)

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MCVISC Rheological Model and Its Realization in FLAC3D Program

DOI：10.13409/j.cnki.jdpme.2015.02.013

摘要

Abstract

关键词

Keywords

references

MCVISC Rheological Model and Its Realization in FLAC^3D Program