Reducing cracking adjacent shell flange connecting bolts
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United States of America Patent
Stats
-
Oct 22, 2002
Issued Date -
N/A
app pub date -
May 20, 2000
filing date -
May 20, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flanged joint connection for connecting together by a bolted connection a pair of casing shells having connecting flanges. The connection reduces bearing stress concentrations adjacent fillets provided at the junction of the flange and the casing shell surface. A rectilinear edge portion is provided on a bolt head or a spacer, or both, to avoid point contact of the bolt head or spacer and the flange face or fillet. The rectilinear edge portion includes a convexly-curved surface that faces the fillet. The incidence of cracks between a bolt hole and the fillet, as well as the incidence of circumferential cracks between adjacent bolt holes is significantly reduced.
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