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3qR2

3qR2 „

Central load F, edges clamped

3 FR2 , ,(1 v2) AnEt3

3 F 2m2

3 vF Infi

Central load F, edges freely supported

4tt£Î3

¿2 [d + WlO&^ + d-v)]

For an annular ring, freely supported at its outside edge, with total load F applied around the inside radius R\, the maximum stress is tangential at the inside radius,

Tit2

R2 R

If the outside edge is clamped the maximum stress becomes

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