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Quantitative and qualitative study on the cracking in Ti-6Al-4V material under fretting-fatigue solicitations.
Last modified: 2013-05-03
Abstract
Fretting fatigue is a critical solicitation that comes out in many aeronautic
structures as, for example, the blade/disk contact of aircraft engines (Figure 1). It
is characterized by small displacements between two bodies, one of which has an
applied bulk stress. This phenomenon has been studied for a long time [1] and has
been identified to induce damage as well as significantly reduce the fatigue
resistance. Fretting leads to premature crack nucleation compared to classic
fatigue solicitation.
structures as, for example, the blade/disk contact of aircraft engines (Figure 1). It
is characterized by small displacements between two bodies, one of which has an
applied bulk stress. This phenomenon has been studied for a long time [1] and has
been identified to induce damage as well as significantly reduce the fatigue
resistance. Fretting leads to premature crack nucleation compared to classic
fatigue solicitation.
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