Contact mechanics of close fitting tolerances

[mecheng24]

Hi, can anyone point me in the right direction for a source on contact mechanics between say a lug in a hole with a tight tolerance (d/D ~1 or very close to 1).

The equations in the two texts I have (Shigley / Roark) give a contact area of 180deg. Are these equations valid for such situations?

Thanks in advance

J

 

[KENAT]

Well, you could look at hertzian contct stress I suppose.

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