A study of thermo-visco-elasto-plastic model for rocks under temperature effects

XU Xiao-li; GAO Feng; SHEN Xiao-ming; LIAO Meng-ke

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

A study of thermo-visco-elasto-plastic model for rocks under temperature effects

更新时间：2026-06-25

- A study of thermo-visco-elasto-plastic model for rocks under temperature effects
- Vol. 27, Issue S2, (2006)
- 作者机构：
  
  中国矿业大学理学院工程力学系,徐州,221008
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU451
- Online First：16 December 2006，
  
  Published：2006
- 稿件说明：
移动端阅览
XU Xiao-li, GAO Feng, SHEN Xiao-ming, et al. A study of thermo-visco-elasto-plastic model for rocks under temperature effects[J]. 2006, 27(S2).
DOI：

XU Xiao-li, GAO Feng, SHEN Xiao-ming, et al. A study of thermo-visco-elasto-plastic model for rocks under temperature effects[J]. 2006, 27(S2). DOI：

摘要

在西原体模型的基础上，通过引入弹簧的热膨胀系数，将温度效应引入到模型中，推导了单轴应力状态下微分形式的热粘塑性本构方程。通过蠕变曲线和卸载曲线的分析，考虑了温度效应的西原体模型当应力水平较低时为稳定蠕变，存在瞬时弹性、弹性后效和由温度引起的粘性流动；当应力水平较高时为不稳定蠕变，存在瞬时弹性、弹性后效和由温度和应力共同引起的粘性流动，该模型较全面地反映了岩石在温度作用下的蠕变性质。

Abstract

The thermo-visco-elasto-plastic constitutive differential equation under uniaxial compression has been deduced based on Nishihara rheological model considering the spring’s coefficients of thermal expansion. Through analyzing the creep and unloading curves

the Nishihara rheological model considering the effect of temperatures is in a stable creep while the stress is low

which contains instantaneous elasticity

elastic aftereffect and viscosity flow caused by temperature. The model in a high stress level is an unstable creep

which also contains instantaneous elasticity

elastic aftereffect

but the viscosity flow is caused by the mutual action of temperature and stress. The creep properties of rocks subjected to changing temperatures can be comprehensively reflected using this model.

关键词

Keywords

references

Views

177

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Nonlinear viscoelastic creep property of rock with time-temperature equivalence effect

Numerical simulation of creep induced progressive failure process of rock under uniaxial compression

Coupling mechanism of seepage and heat transfer in rock fracture based on physics-informed neural networks

Experimental study on accelerated destabilisation of creeping coal body under medium impact dynamic loading

Discrete element simulation of aging effect of chemical weathering on rock

Related Author

ZHU Yuan-guang

LIU Quan-sheng

ZHANG Cheng-yuan

SHI Kai

LI Lian-chong

XU Tao

TANG Chun-an

ZHU Li-kai

Related Institution

State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

School of Civil and Hydraulic Engineering, Dalian University of Technology

Key Laboratory of Rock and Soil Mechanics, Chinese Academy of Sciences

Fushun Branch of China Coal Research Institute

Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology

AI问答

⁰