On Axisymmetric Residual Stresses in Tubes With Longitudinally Nonuniform Stress Distribution

[+] Author and Article Information
T. Nishimura

Department of Mechanical Engineering, Tokyo Metropolitan College, Higashiohi 1-10-40, Shinagawa-ku, Tokyo 140, Japan

J. Appl. Mech 60(2), 300-309 (Jun 01, 1993) (10 pages) doi:10.1115/1.2900793 History: Received July 26, 1990; Revised May 19, 1992; Online March 31, 2008


New equations for calculating residual stress distribution are derived from the theory of elasticity for tubes. The initial distribution of the stresses including the shearing stress is computed from longitudinal distributions of residual stresses measured by the X-ray methods at the surface after removal of successive concentric layers of material. For example, the residual stresses of a steel tube quenched in water were measured by the X-ray diffraction method. The new method was also applied to a short tube with hypothetical residual stress distribution. An alternative finite element analysis was made for a verification. The residual stresses computed by finite element modeling agreed well with the hypothetical residual stresses measured. This shows that good results can be expected from the new method. The equations can also be used for bars by simple modification.

Copyright © 1993 by The American Society of Mechanical Engineers
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