The purpose of this paper is to investigate the stress concentration in stress fields around crossbores for closed-end thick-walled square blocks and cylindrical shells using the finite element method. These stress concentration factors are presented and discussed as a function of the ratio of crossbore radius to the cylinder internal radius to 0.7) for a range of wall ratios (Y=1.5 to 5). Charts and simple expressions are provided for ease of use.
Issue Section:Technical Papers
Keywords:stress analysis, shapes (structures), shells (structures), elasticity, finite element analysis, pressure vessels
ANSYS Inc., 2001, ANSYS Release 6.0.
Parametric Technology Corporation, 2000, Pro/Mechanica 2000i2 Release 22.3.
ABAQUS/Standard, 2001, Version 5.8.8, Hibbitt, Karlsson, and Sorenson Inc.
Danfelt, E., 1996, “Preliminary Results of a Finite Element Evaluation to Address the Decay Length in Thick Walled Cylinders.”
Dixon, R. D., and Perez, E. H., 1998, “Effects of Cross-Bores on the Limit Load of High Pressure Cylindrical Vessels,” High Pressure Technology, ASME PVP-Vol. 371, ASME, New York, pp. 119–123.
Chaaban, A., and Burns, D. J., 1986, “Design of High Pressure Vessels With Radial Crossbores,” Physica 139 & 140B North Holland, Amsterdam.
Analysis of Stress Concentrations in Thick Cylinders With Sideholes and Crossholes,”
ASME J. Eng. Ind.,
94, Series B, p.
Yamamoto, K., Susumu, T., 2000, “Stress Concentration Factors for Cross Bores in KHK Standard,” Report No. HPI-ASME-004 Rev. 0, Subcommittee on High Pressure Vessels, The High Pressure Institute of Japan (HPI).
Lapsley, C., and Mackensie, D., 1997, “Residual Stress at Radial Cross-Bores,” High Pressure Technology, ASME PVP-Vol 344, ASME, New York, pp. 51–54.
Masu, L. M., and Craggs, G., 1992, “Fatigue Strength of Thick-Walled Cylinders Containing Cross-Bores With Blending Features,” Proc Instn Mech Engrs, 206, pp. 299–309.
Chaaban, A., and Barake, N., 1993, “Elasto-Plastic Analysis of High Pressure Vessels With Radial Cross-Bores,” High Pressure Technology, ASME PVP-Vol. 263, ASME, New York, pp. 67–123.
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