含缺陷流变性材料破坏过程中宏、细、微观层次体系的一个统一方程(英文)  

An Unified Equation of Macro-Meso-Microscopic Stratum Systemfor Rheological Material Containing Defects in Failure Process

作　　者：袁龙蔚[1] 黄丽斌 

机构地区：[1]湘潭大学基础力学与材料工程研究所,湘潭411105

出　　处：《湘潭大学自然科学学报》1999年第4期130-136,共7页Natural Science Journal of Xiangtan University

基　　金：国家自然科学基金!(19632030)

摘　　要：固体的不可逆形变和断裂与一类过程相关,在此过程中宏观效应是细观层次行为起着支配作用。因此,流变性材料在外力作用下的可靠预测应基于对细、微观层次中过程机理的清楚了解。显然,考虑到微、细、宏观层次中不同过程间的相互作用,并在单一体系内对这些过程进行描述,才能够提供含缺陷流变性材料形变和断裂的充足理论。本文首次提出含缺陷流变性材料破坏过程中宏、细、微观层次体系的一个统一的方程。The irreversible deformation and fracture of solids may be related to a class of processes in which the macroscopic effects are predominated by mesoscopic level behavior. For this reason, a reliable prediction of a rheological material under external force should be based upon a clear understanding of the mechanism of the processes in meso- and micro-scales. It is evident that only the description of these processes within a single system, taking into account the interrelation of different processes in micro-, meso- and macro-scales, would provide an adequate theory of the deformation and fracture of rheological material containing defects. In this paper, an unified equation of macro-/ meso-/ microscopic stratum system for rheological material containing defects is first proposed.

关 键 词：流变性材料 缺陷 层次体系 断裂 破坏过程 分形 

分 类 号：O346.1[理学—固体力学] TB301[理学—力学]