Issue 38

D. Marhabi et alii, Frattura ed Integrità Strutturale, 38 (2016) 36-46; DOI: 10.3221/IGF-ESIS.38.05

ω

Rb W ;

Energy density and over-energy on the area S* under rotating bending

Rb

* 

Critical stress and their effect on physically small crack; Energy supplied to the material at the critical stress;

*W

Eq * 2

2

*2



m Te ,   ; Rb , 1   



Equivalent critical stress under axial loading;

 

Endurance limit under fully alternate tensile and rotating bending

Te , 1 D Uniax

 

Over-energy value at the endurance limit;

Over-energy on the area S* under dissymmetrical rotating bending

Rb d ,

46