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contributor authorH. F. Wang
contributor authorZ. F. Sang
date accessioned2017-05-09T00:17:33Z
date available2017-05-09T00:17:33Z
date copyrightNovember, 2005
date issued2005
identifier issn0094-9930
identifier otherJPVTAS-28460#430_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/132472
description abstractThe object of this paper is to investigate the effect of the geometry of circumferential grooves on the connection strength of hydraulically expanded tube-to-tubesheet joints of heat exchangers. Seven-tube models with different groove widths, depths, spacings, and locations were fabricated under the same expansion pressure by commercial hydraulic expanders. Then the corresponding pullout forces were gained by experimental means. In addition, the process of hydraulic expansion of tube-to-tubesheet joints was simulated using the nonlinear finite element method based on a two-dimensional (2D) axisymmetrical model. The residual stress and deformation of joints were determined, and the effect of geometrical parameters of the grooves on the connection strength of joints was studied in terms of the average residual contact pressure of the joints. The experimental and calculation results indicate that the most important geometrical factor for determining the connection strength is the groove width. Groove depth, spacing, and location have a secondary effect. Optimum geometrical sizes of grooves are proposed based on maximum axial strength. These can provide a reference for the revision of design and manufacturing codes.
publisherThe American Society of Mechanical Engineers (ASME)
titleEffect of Geometry of Grooves on Connection Strength of Hydraulically Expanded Tube-to-Tubesheet Joints
typeJournal Paper
journal volume127
journal issue4
journal titleJournal of Pressure Vessel Technology
identifier doi10.1115/1.2061007
journal fristpage430
journal lastpage435
identifier eissn1528-8978
keywordsPressure
keywordsGeometry AND Stress
treeJournal of Pressure Vessel Technology:;2005:;volume( 127 ):;issue: 004
contenttypeFulltext


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