AUTHORS: Ioan Enescu
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ABSTRACT: In the paper is presented the influence of the most used parameter regarding the cyclic fatigue life Stress Intensity Factor in the field of Linear Elastic Fracture Mechanics. Also, the researches of this study are focused on the crack closure influence on modifying the stress factors of effective stress that conduct to the increasing the material cyclic fatigue life. Using the orthotropic environments by means of the BEM method, it is shown the definition of the contact problem with small distortions and displacements and will be demonstrated its capabilities carrying important advantages in front of other means in this domain, especially in terms of studying crack closure problems.
KEYWORDS: - stress intensity factor, closure, cyclic fatigue, contact problem.
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