Contact Friction Simulating between Two Rock Bodies Using ANSYS


Article Preview

The ANSYS® Finite Element Method (FEM) program offers a variety of elements designed to treat cases of changing mechanical contact between the parts of an assembly or between different faces of a single part. These elements range from simple, limited idealizations to complex and sophisticated, general purpose algorithms. Contact problems are highly nonlinear and require significant computer resources to solve. Recently, analysts and designers have begun to use numerical simulation alone as an acceptable mean of validation employing numerical Finite Element Method (FEM). Contact problems fall into two general classes: rigid-to-flexible and flexible-to-flexible. In general, any time a soft material comes in contact with a hard material, the problem may be assumed to be rigid-to-flexible. The other class, flexible-to-flexible, is the more common type. To model a contact problem, you first need to identify the parts to be analyzed for their possible interaction. If one of the interactions is at a point, the corresponding component of your model is a node. If one of the interactions is at a surface, the corresponding component of your model is an element. The finite element model recognizes possible contact pairs by the presence of specific contact elements. These contact elements are overlaid on the parts of the model that are being analyzed for interaction. This paper present a simulation contact friction between Two Rock bodies loaded under two types of load condition: Axial pressure Load “σ” and Tangential Load “τ”. ANSYS® software has been used to perform the numerical calculation in this paper.





K. Ghouilem et al., "Contact Friction Simulating between Two Rock Bodies Using ANSYS", International Journal of Engineering Research in Africa, Vol. 29, pp. 1-9, 2017

Online since:

March 2017




* - Corresponding Author

[1] Juvinall, R. C. and K. M. Marshek, Fundamentals of Machine Component Design, second edition, John Wiley and Sons, pp.322-329, 527, 581-587, (1991).

[2] Shigley, J. E., Mechanical Engineering Design, second edition, McGraw-Hill, pp.93-97, (1972).

[3] Roark, R. J. and W. C. Young, Formulas for Stress and Strain, fifth edition, McGraw-Hill, pp.513-522, (1975).

[4] Timoshenko, S. P., and J. N. Goodier, Theory of Elasticity, 3rd ed., McGraw-Hill, pp.409-420, (1970).

[5] ANSYS Contact Technology Guide, ANSYS Release 14. 0 Documentation, ANSYS, Inc.

[6] Chan S.H. and Tuba I.S., A finite element method for contact problems of solid bodies, Int. J. Mech. Sci., 13, 615- 639, (1971).

[7] Simo J.C., Wriggers P. and Taylor R.L., A perturbed lagrangian formulation for the finite element solution of contact problems, Comp. Meth. Appl. Mech. Eng., 50, 163-180, (1985).

[8] Wriggers P. and Simo J.C., A note on tangent stiffness for fully nonlinear contact problems, Comm. in Appl. Num. Meth., 1, 199-203, (1985).


[9] Curnier A. and Alart P., A generalized Newton method of contact problems with friction, J. Theo. Appl. Mech., 7, 145-160, (1988).

[10] Alart P. and Curnier A., A mixed formulation for frictional contact problems prone to Newton like solutionmethods, Comp. Meth. Appl. Mech. Engng. 92, 353-375 (1991).


[11] Mohr G. A., Contact stiffness matrix for finite element problems involving external elastic restraint, Computers and Structures, vol. 12, no. 2, p.189–191, (1980).