Inelastic Buckling of Rings with Residual Stresses

by Subhash C. Anand, (M.ASCE), Assoc. Prof. of Civ. Engrg.; Clemson Univ., Clemson, SC,
Alvin R. Griffith, (A.M.ASCE), Supv. Engr.; R. W. Beck & Co., Seattle, WA,

Serial Information: Journal of the Engineering Mechanics Division, 1973, Vol. 99, Issue 5, Pg. 927-942

Document Type: Journal Paper

Discussion: Chu Kuang-han (See full record)
Closure: (See full record)

Abstract: Circular rings are commonly fabricated by cold rolling long straight bars of desired cross sections to the required radii and then completing them with a single butt weld. This process induces significant amount of residual stress in a ring which affects its in-service performance. Expressions which define the amount of residual stresses in a ring are derived in this paper and are subsequently used to develop inelastic buckling equations. Buckling pressures for rings with various radius-to-diameter ratios are computed for all available structural steels and are presented graphically. It is shown that reductions of up to 35% in buckling pressures occur due to the presence of residual stresses.

Subject Headings: Residual stress | Buckling | Inelasticity | Fabrication | Welding | Structural steel | Graphic methods |

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