Abstract
A technique to determine stress intensity factors, K_I and K_<II>, of an oblique crack initiated under fretting fatigue conditions was proposed in this report. Firstly, the database for contact stress distributions has been established through a series of boundary element analyses of contact pressure and friction stress of the contact interface. Secondary, the computer program to interpolate pad load distribution and calculate the stress intensity factors has been developed. The calculation method of stress intensity factors is based on the Green's functions method and the principle of superposition. Finally, the wide range of variation in stress intensity factors has been obtained. This program is applicable to crack propagation mechanism, growth rate, etc.
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