A numerical and experimental approach to the design and failure analysis of a pinion shaft for wheel loaders

Croccolo, Dario; Agostinis, Massimiliano De; Fini, Stefano; Olmi, Giorgio

doi:10.1177/0954406218756441

Cited by 2 publications

(1 citation statement)

References 23 publications

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“…The geometry is modelled with axisymmetric eight-noded isoparametric quadrilateral elements, see Figure 1, similar to Ref. 40. The axial and bending loading conditions may be modelled exactly with the Fourier series, with a substantial reduction of the computing time with respect to a 3D model.…”

Section: Groove Geometry and Numerical Assessmentmentioning

confidence: 99%

Shafts with U-shaped circumferential grooves: design charts for stress concentration factors, radial displacement and Poisson’s ratio influence

Mantovani

Chiari

Giacalone

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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Shafts with U-shaped circumferential grooves subjected to internal normal force and bending moment are investigated on the basis of finite element analysis. The classical problem of the stress concentration factors (SCFs) identification is addressed. SCF charts are provided, adopting the maximum equivalent von Mises stress in the SCF definition. The discrepancy between the uniaxial SCFs extracted from the standard reference books and the multiaxial SCF obtained by finite element increases from 5% up to 20%. The intersections between the SCF curves are studied, which reveal a non-monotonic profile of the SCFs with respect to the outer and inner diameter ratio of the notched shaft. The radial displacement at the notch root is examined and design charts of ample validity and prompt access are compiled. It is found that the radial displacement sign and magnitude are largely dependent on the geometry of the notch. Furthermore, the strain and stress state of extremely shallow grooves are analysed, and a critical discussion on their SCFs using the von Mises criterion is presented. The influence of Poisson’s ratio is considered. A simplified method for the evaluation of a multiaxial SCF is proposed to account for the Poisson’s ratio effect. Thanks to the employment of few dedicated diagrams, and the present method allows an accurate evaluation of the SCF for U-grooved shafts, when Poisson’s ratio differs from the common 0.3 value.

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Section: Groove Geometry and Numerical Assessmentmentioning

confidence: 99%

Shafts with U-shaped circumferential grooves: design charts for stress concentration factors, radial displacement and Poisson’s ratio influence

Mantovani

Chiari

Giacalone

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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Failure of Threaded Connections: A Literature Review

et al. 2023

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Threaded fasteners are vastly used in the industry due to ease of mounting and dismounting and flexibility of design. Nonetheless, several researchers indicate that most failures recorded on nearly any kind of machinery and vehicles are initiated at fasteners. This review paper aims at summarising the failures involving threaded fasteners available in the literature. The analysis involves categorization of the failures according to the root cause, e.g., incorrect assembly, overload, fatigue, preload loss during operation, among others. The purpose of this review paper is to give a systematic glance of the topic to the scientific and technical community, to correctly orient future investigations on the broad topic of threaded fasteners.

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A numerical and experimental approach to the design and failure analysis of a pinion shaft for wheel loaders

Cited by 2 publications

References 23 publications

Shafts with U-shaped circumferential grooves: design charts for stress concentration factors, radial displacement and Poisson’s ratio influence

Shafts with U-shaped circumferential grooves: design charts for stress concentration factors, radial displacement and Poisson’s ratio influence

Failure of Threaded Connections: A Literature Review

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