A unified model of initiation and growth of fatigue macrocracks. part 3. Stage of growth of a macrocrack

被引:4
作者
Ostash, OP [1 ]
Panasyuk, VV [1 ]
机构
[1] Ukrainian Acad Sci, Karpenko Physicomech Inst, Lviv, Ukraine
关键词
D O I
10.1007/BF02355474
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
From a common viewpoint, fatigue fracture of materials is simulated by the process of initiation of an initial macrocrack of length a(i) = d* (d* is the constant of the material), which is successively (stepwise) repeated at the stage of its growth. As a result, the diagram "range of local stresses - period of initiation of an initial macrocrack" or ''range of local strains - period of initiation of an initial macrocrack," which was determined for notched specimens, can be used fur the construction of the diagram "growth rate of a macrocrack - range of the stress intensity factor" or "growth rate of a macrocrack - range of local strains," respectively, if the crack is presented as a sharp notch with effective rounded radius rho(eff) = d* of the tip.
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页码:299 / 309
页数:11
相关论文
共 31 条
[1]  
Andreikiv A. E., 1976, Fiziko-Khimicheskaya Mekhanika Materialov, V12, P27
[2]  
BAUS A, 1978, CIRC INFORM TECH CTR, V33, P161
[3]  
BOLOTIN VV, 1986, FIZ KHIM MEKH MATER, V22, P18
[4]  
BOTVINA LR, 1984, FIZ KHIM MEKH MATER, V20, P17
[5]   STUDY OF CRACK TIP OPENING UNDER CYCLIC LOADING TAKING INTO ACCOUNT THE ENVIRONMENT AND R RATIO [J].
CLERIVET, A ;
BATHIAS, C .
ENGINEERING FRACTURE MECHANICS, 1979, 12 (04) :599-611
[6]  
DEVAUX JC, 1979, T 5 INT C STRUCT MEC, VG
[7]  
FURUYA Y, 1987, ENG FRACT MECH, V26, P349, DOI 10.1016/0013-7944(87)90017-8
[8]   A NOTCH STRESS-STRAIN ANALYSIS APPROACH TO FATIGUE CRACK-GROWTH [J].
GLINKA, G .
ENGINEERING FRACTURE MECHANICS, 1985, 21 (02) :245-261
[9]  
Gnyp I. P., 1975, Fiziko-Khimicheskaya Mekhanika Materialov, V11, P108
[10]  
Klesnil M., 1980, Fatigue of metallic materials