Numéro
J. Phys. Colloques
Volume 48, Numéro C3, Septembre 1987
4th International Aluminium Lithium Conference
Page(s) C3-793 - C3-799
DOI https://doi.org/10.1051/jphyscol:1987393
4th International Aluminium Lithium Conference

J. Phys. Colloques 48 (1987) C3-793-C3-799

DOI: 10.1051/jphyscol:1987393

FATIGUE CRACK GROWTH OF THE 8090 ALLOY UNDER OVERLOADING

C. LESPINASSE et C. BATHIAS

Université de Technologie de Compiègne, CNRS-UA 849, Rue P. de Roberval, B.P. 233, F-60206 Compiègne Cedex, France


Abstract
In the present paper, the fatigue crack growth retardation following a single tensile overload applied to the 8090 alloy is studied and compared with results obtained from conventional aluminium alloys. The 8090 alloy exhibits a high retardation effect to overloads ; reasons for this good behaviour are given considering mechanical and fractographic aspects.