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应变空间表述的岩体损伤本构关系
引用本文:凌建明,孙均.应变空间表述的岩体损伤本构关系[J].同济大学学报(自然科学版),1994,22(2):135-140.
作者姓名:凌建明  孙均
作者单位:同济大学地下建筑与工程系
摘    要:在分析岩体细观和宏观损伤特征及其与岩体非弹性变形之间关系的基础上,应用损伤表面的概念描述损伤状态和过程,定义弹性-损伤准则,进而建立了应变空间表述的岩体损伤本构关系,并讨论了其参数的确定和应用。

关 键 词:本构关系  岩体  应变空间  损伤

A Constitutive Relation of Rock Mass Expressed in Strain Space
Ling Jianming,Sun Jun.A Constitutive Relation of Rock Mass Expressed in Strain Space[J].Journal of Tongji University(Natural Science),1994,22(2):135-140.
Authors:Ling Jianming  Sun Jun
Abstract:Based on the analyses of deformation process, micro-and macrodamages and their evolutions, this paper concludes that the non-elastic deformation of rock mass results from various scales of damages and their evolutions, and the concept of "plastic deformation" can not reveal the mechanism of the non-elastic deformation of rock mass. The authors use the concept of damage surface in strain space to describe the state and process of damage and to define an elastic-damage criterion for rock mass. On the basis of the non-elastic response of damage and the notion of damage surface, a constitutive relation expressed in strain space is established for rock mass in this paper. The parameter determination of the relation and its application are discussed as well.
Keywords:Damage constitutive relation  Rock mass  Stain space  Damage surface
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