Contact problem for a narrow annular punch. Unknown region of contact

I. I. Argatov^a, S. A. Nazarov<sup>b

a</sup> Makarov State Marine Academy, St. Petersburg, 199026
^b St. Petersburg State University, St. Petersburg, 198904

Abstract: The nonlinear problem of determining the contact stresses and the contact zone under the base of a narrow annular punch is studied. An asymptotic model of one–sided contact along the line is constructed by the method of matched asymptotic expansions. Explicit asymptotic formulas for the line–pressure density are obtained. The asymptotic representation of the contact arc is given.

UDC: 539.3

Received: 17.05.1999
Accepted: 25.08.1999

 English version: Journal of Applied Mechanics and Technical Physics, 2000, 41:6, 1123–1130

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