End effects on elbows subjected to moment loadings

Conference · Fri Jan 01 04:00:00 EST 1982 · Am. Soc. Mech. Eng., Pressure Vessels Piping Div., (Tech. Rep.) PVP; (United States)

OSTI ID:5612688

Rodabaugh, E C

So-called ''end effects'' for moment loadings on short-radius and long-radius butt welding elbows of various arc lengths are investigated with a view toward providing more accurate design formulas for critical piping systems. Data developed in this study, along with published information, were used to develop relatively simple design equations for elbows attached at both ends to long sections of straight pipe. These formulas are the basis for an alternate ASME Code procedure for evaluating the bending moment stresses in Class 1 nuclear piping (ASME Code Case N-319). The more complicated problems of elbows with other end conditions, e.g., flanges at one or both ends, are also considered. Comparisons of recently published experimental and theoretical studies with current industrial code design rules for these situations indicate that these rules also need to be improved.

• Research Organization: Rodabaugh and Associates, Hilliard, Ohio
• OSTI ID: 5612688
• Report Number(s): CONF-820601-
• Conference Information: Journal Name: Am. Soc. Mech. Eng., Pressure Vessels Piping Div., (Tech. Rep.) PVP; (United States) Journal Volume: PVP-VOL-56
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420200* -- Engineering-- Facilities
Equipment
& Techniques
BENDING
DESIGN
DYNAMIC LOADS
EQUATIONS
FLANGES
PIPE FITTINGS
STRESSES