典型文献
An Analytical Method for Predicting Direct Tensile Creep Fracture in Brittle Solids Containing Initial Microcracks
文献摘要：
The tensile creep fracture behaviors in brittle solids are of great significance for the safety evaluation of brittle solid engineering.However,micromechanics-based tensile creep fracture behavior is rarely studied.In this study,a micromechanics-based method for predicting direct tensile creep fractures is presented.This method is established by combining the sug-gested expression of the mode-I stress intensity factor,the subcritical crack growth law,and the relationship between wing crack length and axial strain.This suggested mode-I stress intensity factor is formulated by the use of the basic theory of fracture mechanics under different loading modes.The rationality of the proposed tensile creep fracture model is verified by comparing with the experimental results.The correspondences of time-dependent axial strain,strain rate,wing crack length,and crack velocity are plotted under constant stress and stepping stress during tensile creep fracture.The effects of the initial crack size,inclination angle and density on the crack initiation stress,tensile strength,tensile creep fracture time,steady-state strain rate,initial strain,crack coalescence strain,and failure strain are discussed.
文献关键词：
中图分类号：
作者姓名：
Xiaozhao Li;Chengzhi Qi
作者机构：
School of Civil and Transportation Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Beijing Advanced Innovation Center for Future Urban Design,Beijing 100044,China;Beijing International Scientific and Technological Cooperation Base of Construction of Urban Traffic Infrastructure,Beijing 100044,China
文献出处：
引用格式：
[1]Xiaozhao Li;Chengzhi Qi-.An Analytical Method for Predicting Direct Tensile Creep Fracture in Brittle Solids Containing Initial Microcracks)[J].固体力学学报（英文版）,2022(01):152-160
A类：
Brittle,Microcracks
B类：
Analytical,Method,Predicting,Direct,Tensile,Creep,Fracture,Solids,Containing,Initial,tensile,creep,behaviors,brittle,solids,great,significance,safety,evaluation,engineering,However,micromechanics,rarely,studied,this,study,method,predicting,direct,fractures,presented,This,established,by,combining,expression,stress,intensity,subcritical,growth,law,relationship,between,wing,length,axial,strain,suggested,formulated,use,basic,theory,under,different,loading,modes,rationality,proposed,model,verified,comparing,experimental,results,correspondences,dependent,rate,velocity,plotted,constant,stepping,during,effects,initial,size,inclination,angle,density,initiation,strength,steady,state,coalescence,failure,discussed
AB值：
0.495394
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