Non-slipping adhesive contact of rigid cylinder on an elastic power-law graded half-space

Details Non-slipping adhesive contact of rigid cylinder on an elastic power-law graded half-space Non-slipping adhesive contact of rigid cylinder on an elastic power-law graded half-space

2009-11-23

arxiv.org/abs/0911.4334v1

Physics

Condensed Matter

Materials Science

Scientific paper

In this paper, adhesive contact of a rigid cylinder on an elastic power-law graded half-space is studied analytically with the theory of weakly singular integral equation and orthogonal polynomial method. Emphasis is placed on the coupling effect between tangential and normal directions which was often neglected in previous works. Our analysis shows that the coupling effect tends to minimize the contact area in the compressive regime. The effect of bending moment on the adhesion behavior is also examined. Like a pull-off force, there also exist a critical bending moment at which the cylinder can be bended apart from the substrate. However, unlike pull-off force, the critical bending moment is insensitive to the gradient exponent of the graded material.

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