A simplified elastoplastic constitutive model under undrained cyclic loading

GAO Guang-yun; SHI Gang; GU Zhong-hua; FENG Shi-jin

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A simplified elastoplastic constitutive model under undrained cyclic loading

更新时间：2026-06-25

- A simplified elastoplastic constitutive model under undrained cyclic loading
- Vol. 29, Issue 5, (2008)
- 作者机构：
  
  1. 同济大学岩土及地下工程教育部重点实验室,上海,200092
  2. 福建交通规划设计研究院,福州,350004
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU435
- Online First：24 July 2013，
  
  Published：2008
- 稿件说明：
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GAO Guang-yun, SHI Gang, GU Zhong-hua, et al. A simplified elastoplastic constitutive model under undrained cyclic loading[J]. 2008, 29(5).
DOI：

GAO Guang-yun, SHI Gang, GU Zhong-hua, et al. A simplified elastoplastic constitutive model under undrained cyclic loading[J]. 2008, 29(5). DOI：

摘要

基于塑性硬化模量场理论和多重屈服面模型，结合各向同性硬化准则和移动硬化准则，在新的应力空间建立了一个新型不排水循环荷载作用下的多屈服面模型，并推导了一个适合三轴试验的简化的多屈服面模型。在此基础上，结合一个循环荷载作用下的动孔压模型，进行了饱和软黏土的动三轴模拟试验。结果表明，文中建立的多屈服面模型能够较好地模拟循环三轴试验、直剪试验和平面应变条件下的试验。

Abstract

Based on the theory of field of plastic moduli and the multi-yield-surface constitutive model

and combined with isotropic hardening rule and translating hardening rule

a new multi -surface elastoplastic constitutive model was proposed in a new stress space. And a simple model which was suited to the triaxial tests

was infered. Finally

combined with a residual pore-water pressure model

the new model has been validated by means of a cyclic triaxial test of saturated soft clay. The validation indicates that the multi-yield-surface constitutive model can be used to simulate the cyclic triaxial test

direct shear test and plane strain test.

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