DETERMINATION OF SUBCRITICAL CRACK-GROWTH PARAMETERS BY IN-SITU OBSERVATION OF INDENTATION CRACKS

被引：26
作者：
DWIVEDI, PJ
GREEN, DJ
机构：
[1] Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1995年 / 78卷 / 08期
关键词：
D O I：
10.1111/j.1151-2916.1995.tb08624.x
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A technique to determine stress intensity factor-crack velocity (K-v) relationships for subcritical crack growth from in situ observation of indentation cracks is described. To minimize the effect of residual contact stresses and lateral crack interaction, measurements were made only on cracks that had undergone significant subcritical crack growth. Crack shapes were determined fractographically from crack-arrest markings, produced by temporary unloading during the crack extension process. The subcritical crack growth parameters obtained by this technique were in excellent agreement with those determined from dynamic fatigue and previous studies.
引用
收藏
页码：2122 / 2128
页数：7
相关论文
共 33 条
[1]   A CRITICAL-EVALUATION OF INDENTATION TECHNIQUES FOR MEASURING FRACTURE-TOUGHNESS .1. DIRECT CRACK MEASUREMENTS [J].
ANSTIS, GR ;
CHANTIKUL, P ;
LAWN, BR ;
MARSHALL, DB .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1981, 64 (09) :533-538
[2]   MICROMECHANICS OF FLAW GROWTH IN STATIC FATIGUE - INFLUENCE OF RESIDUAL CONTACT STRESSES [J].
CHANTIKUL, P ;
LAWN, BR ;
MARSHALL, DB .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1981, 64 (06) :322-325
[3]   A CRITICAL-EVALUATION OF INDENTATION TECHNIQUES FOR MEASURING FRACTURE-TOUGHNESS .2. STRENGTH METHOD [J].
CHANTIKUL, P ;
ANSTIS, GR ;
LAWN, BR ;
MARSHALL, DB .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1981, 64 (09) :539-543
[4]  
COK RF, 1982, J MATER SCI, V17, P1108
[5]   The effect of lateral crack growth on the strength of contact flaws in brittle materials [J].
Cook, Robert F. ;
Roach, David H. .
JOURNAL OF MATERIALS RESEARCH, 1986, 1 (04) :589-600
[6]  
DABBS TP, 1982, PHYS CHEM GLASSES, V23, P58
[7]   INDENTATION CRACK-SHAPE EVOLUTION DURING SUBCRITICAL CRACK-GROWTH [J].
DWIVEDI, P ;
GREEN, DJ .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1995, 78 (05) :1240-1246
[8]   SLOW CRACK GROWTH IN BRITTLE MATERIALS UNDER DYNAMIC LOADING CONDITIONS [J].
EVANS, AG .
INTERNATIONAL JOURNAL OF FRACTURE, 1974, 10 (02) :251-259
[9]   ENVIRONMENTALLY ENHANCED CRACK-GROWTH IN SODA-LIME GLASS [J].
FREIMAN, SW ;
WHITE, GS ;
FULLER, ER .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1985, 68 (03) :108-112
[10]   THEORY OF FATIGUE FOR BRITTLE FLAWS ORIGINATING FROM RESIDUAL-STRESS CONCENTRATIONS [J].
FULLER, ER ;
LAWN, BR ;
COOK, RF .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1983, 66 (05) :314-321
1234