摘要
将试验机刚度作为有限量，据能量平衡原理建立的岩石破坏的数学模型可归结为折迭突变模型。该模型包含的参数有能量输入率Ｊ和系统刚度比Ｋ，故可恰当地描述岩石破坏时，可能出现的跳跃性失稳（脆性破坏）现象及试验中观察记录到的其他现象，对系统作稳定性分析，并可为伺服加载控制原理提供理论依据。
Taking stiffness of test machine as finite value, the mathematical model of damaging process in rock specimen, which is established by the energy balance principle, can be sorted into the fold castastrophe model. The model, including parameters of energy importing rate J and system stiffness ratio K , can properly describe the jumping instability or brittle damaging phenomenon that may occur and other phenomena that are recorded in the test when rock and reinforced concrete members damage under different loading ways. It can also analyze the stability of the system and provide theoretic basis for the servo control loading principle.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
1999年第3期299-303,共5页
Chinese Journal of Geotechnical Engineering
基金
山东省自然科学基金
关键词
岩石
破坏过程
折迭突变模型
rock, damage process, fold catastrophe model
