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Dovetail joint

About: Dovetail joint is a research topic. Over the lifetime, 4325 publications have been published within this topic receiving 19657 citations. The topic is also known as: dovetail.


Papers
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Journal ArticleDOI
TL;DR: In this paper, a design parameter that combines fretting damage and peak stress is proposed as a basis for the life assessment of the dovetail joints was proposed as well as a parameter for the lifetime of the disk/blade interface.
Abstract: Specimens designed to reproduce the state of stress of the dovetail joint between blade and disk in a typical gas-turbine configuration have been tested in a 250-kN capacity biaxial fatigue machine. The materials tested were Ti-IMI 829 (disk and blade), Inco 901 and steel FV535 (blades only). The investigation highlights the importance of fretting at the disk/blade interface. A design parameter that combines fretting damage and peak stress is proposed as a basis for the life assessment of the joints.

308 citations

Patent
15 Mar 1995
TL;DR: The spinal prosthetic assembly has a convenient number of elastic intervertebrae prosthetic shock absorbing connectors as mentioned in this paper, which are either omnidirectional (2a) or directional (2b).
Abstract: The spinal prosthetic assembly has a convenient number of elastic intervertebrae prosthetic shock absorbing connectors. These are, according to requirements, either omnidirectional (2a) or directional (2b). The first has two pedicular screw (3a,3b), one fitting the top (4a) and the other the bottom (4b) vertebrae, and anchors (5,6) joined by an omnidirectional dovetail connector (9). The other (2b) has two pedicular screws (14a,14b) fitting the top (15a) and bottom (15b) vertebrae and having anchors (17,18) joined by a directional dovetail connector (18). The omnidirectional prosthetic connecting element has a connector having a hollow cylindrical body cut helicoidally to make it axially elastic and a rectangular spiralled section. The upper and lower body parts have top and bottom dove tails which are fixed, after bending in situ, on the anchors while the body central hollow part is filled at rest with a visco-elastic shock absorbing fluid. All the parameters of the prosthesis elements are determined and fatigue tested before implanting in the patient.

151 citations

Journal ArticleDOI
TL;DR: In this paper, a biaxial fatigue experiment is described which is capable of simulating the loading experienced by a dovetail blade root in an aircraft gas turbine and a comprehensive stress analysis of the experimental configuration has been undertaken and a semi-analytical approach has been developed to provide accurate estimates of surface tractions and subsurface stress fields.

127 citations

Patent
04 Nov 1974
TL;DR: In this paper, a dual tapered dovetail-shaped mortise is formed within a joist to receive a dual-tailed dovetail shaped tenon extending from a beam, and the resulting frictional interlock between the mortise and the tenon created by two forces acting in opposition to one another rigidly secures the beam to the joist.
Abstract: A dual tapered dovetail shaped mortise is formed within a joist to receive a dual tapered dovetail shaped tenon extending from a beam. Laterally oriented cavities are disposed within opposite faces of the mortise to receive correspondingly configured ridges formed integral with the mating tenon. The resulting frictional interlock between the mortise and the tenon created by two forces acting in opposition to one another rigidly secures the beam to the joist without play therebetween. The ridges, mating with the corresponding cavities, affords use of the resulting joint in any plane from horizontal to vertical without danger of separation.

120 citations

Journal ArticleDOI
TL;DR: In this paper, the authors analyzed the impact of plane fretting fatigue contact problems and derived new consequences for FF damage, showing that the surface damage parameters decrease, but the tensile stress concentration increases, suggesting that for cracks eventually initiated, the likelihood of self-arrest is higher than in the equivalent Hertzian case with same loads.

115 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20222
202132
2020114
2019207
2018349
2017229