FATIGUE MODELS FOR AL-ALLOYS

被引：9

作者：

CAVALLINI, M

IACOVIELLO, F

机构：

[1] The authors are with the Dipartimento Ingegneria Industriale, Università di Cassino

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 1991年 / 13卷 / 06期

关键词：

PIVOT POINTS; FATIGUE CRACK PROPAGATION;

D O I：

10.1016/0142-1123(91)90477-G

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The Paris and Collipriest models of fatigue crack growth have been applied to experimental data on Al alloys. A pivot point, common to all the tests carried out on the same material, has been shown to exist when the Paris model is adopted. A mobile pivot, which is a function of the load ratio R, is suggested to exist using the Collipriest model on different sets of Al alloy experimental data. Pairs of parameters, A and B, as defined in this paper, can characterize the fatigue crack propagation behaviour of each alloy, irrespective of the load ratio R.

引用

页码：442 / 446

页数：5

共 10 条

[1]

Beevers C. J., 1975, Metal Science, V9, P119, DOI 10.1179/030634575790444766

[2]

CAVALLINI M, 1987, MISSILI SPAZIO, V3, P1

[3]

Collipriest J., 1972, SURFACE CRACK PHYS P, P43

[4]

GAVINO M, 1990, THESIS U ROME

[5]

IACOVIELLO F, 1989, THESIS U ROME

[6] ON THE EXISTENCE OF A PIVOT POINT FOR STAGE-II FATIGUE CRACK-GROWTH [J].

IOST, A ;

LESAGE, J .

ENGINEERING FRACTURE MECHANICS, 1990, 36 (04) :585-596

[7] THE INFLUENCE OF LOAD RATIO ON FATIGUE CRACK-GROWTH IN 7090-T6 AND IN9021-T4 P/M ALUMINUM-ALLOYS [J].

MINAKAWA, K ;

LEVAN, G ;

MCEVILY, AJ .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1986, 17 (10) :1787-1795

[8]

RAO KTV, 1988, METALL T A, V19, P459

[9] ON OBTAINING FATIGUE CRACK-GROWTH PARAMETERS FROM THE LITERATURE [J].

SINCLAIR, GB ;

PIERI, RV .

INTERNATIONAL JOURNAL OF FATIGUE, 1990, 12 (01) :57-62

[10]

Yokobori T., 1979, ASTM STP, V675, P683

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