The beneficial effect of full or partial autofrettage on the combined 3-D stress intensity factors for inner radial crack arrays in a spherical pressure vessel
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DOI: 10.1016/j.engfracmech.2017.01.032
Abstract: Abstract The distributions of the combined 3-D Stress Intensity Factor (SIF), KIN = KIP + KIA, due to both internal pressure and autofrettage along the front of radial crack arrays emanating from the bore of an overstrained spherical pressure… read more here.
Keywords: autofrettage; radial crack; effect; stress intensity ... See more keywords
Swage autofrettage FEA incorporating a user function to model actual Bauschinger effect
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DOI: 10.1016/j.ijpvp.2021.104372
Abstract: Abstract An ‘exemplar’ Finite Element Analysis (FEA) solution for swage autofrettage (SA) incorporating Bauschinger effect (BE) for a real steel (A723) is presented. This is derived via a new user programmable function (UPF). Datum geometries… read more here.
Keywords: swage; bauschinger effect; swage autofrettage; autofrettage ... See more keywords
Implementation and validation of true material constitutive model for accurate modeling of thick-walled cylinder swage autofrettage
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DOI: 10.1016/j.ijpvp.2021.104378
Abstract: Abstract The fatigue life prediction and associated fail-safe design of autofrettaged tubes require accurate stress modeling of each specific high-strength thick-walled cylinder during and after the autofrettage process, which depends largely on the elastoplastic behavior… read more here.
Keywords: model; thick walled; material; autofrettage ... See more keywords
An alternative design method for the double-layer combined die using autofrettage theory
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DOI: 10.5194/ms-8-267-2017
Abstract: Abstract. The double-layer combined die is used for its longer life in forging. Autofrettage is a well-known elastic–plastic technology that increases the durability of thick-walled cylinders. This study explores an alternative design method of the… read more here.
Keywords: layer combined; die; autofrettage; combined die ... See more keywords