Structural analysis for the design of a lightweight composite railway axle

Johnson, M. S.; Evans, Rachel; Mistry, Preetum Jayantilal; Li, S.; Bruni, Stefano; Bernasconi, A.; Cervello, S.

doi:10.1016/j.compstruct.2022.115544

Cited by 8 publications

(4 citation statements)

References 13 publications

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“…Currently, this material can no longer be described as "new". Moreover, its field of application has largely opened to more "popular" fields: sports (tennis, cycling, skiing), automobile [13][14][15][16][17][18], wind energy [19][20], aerospace [21][22][23], railway [24][25], nautical [26][27], civil engineering [28][29][30], biomechanical industries [31][32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Effect of plant short fibers on the mechanical properties of carbon fiber reinforced epoxy matrix by using FEM based numerical homogenization technique

I. Haddouch,

I. Mouallif,

M. Benhamou

et al. 2024

IJNeaM

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In this study, we utilized the material design library in Ansys Product 2022 R1 to analyze the impact of short plant fibers on the mechanical properties of epoxy resin. We employed the representative volume element (RVE) approach and examined different volume fractions up to 50%. The technique employed in this study was multi-scale modeling based on the finite element method (FEM) for numerical homogenization. Subsequently, we used the same software to develop a five-layer laminated composite. The samples were based on epoxy resin enriched with short plant fibers at fractions of 20% and 30%, as well as pure epoxy resin. The laminated composites were reinforced with carbon fibers. The objective of this study was to analyze the mechanical response of each sample during a tensile test, focusing on multiple parameters. The sought-after results included total deformation, directional deformation, equivalent and elastic stress (Von-mises). The samples containing epoxy resin enriched with 30% of short hemp fibers exhibited remarkable mechanical strength compared to the other samples. These results suggest that the incorporation of short hemp fibers into the matrix led to a significant improvement in the mechanical strength of the composite.

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Section: Introductionmentioning

confidence: 99%

Effect of plant short fibers on the mechanical properties of carbon fiber reinforced epoxy matrix by using FEM based numerical homogenization technique

I. Haddouch,

I. Mouallif,

M. Benhamou

et al. 2024

IJNeaM

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“…Shafts are key components of mechanical equipment in several industries [1]. They are applied in the automotive [2,3], railway [4], and aerospace [5] industries. They are responsible for transmitting the power that originates from the engine to the wheel(s), rotor, or propeller.…”

Section: Introductionmentioning

confidence: 99%

Failure Analysis of the Half-Shafts Belonging to a Three-Wheeled Electric Vehicle

Mendes,

Lopes,

Almas

et al. 2024

Metals

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In the electric vehicles studied, the driven wheels and the differential, which are responsible for the transfer of power and rotational motion, are connected by half-shafts. The failure of two half-shafts in the rear gearbox of a three-wheeled electric vehicle, popularly known as a Tuk Tuk, is examined and evaluated in this research. Therefore, the primary goal of this work is to look at the factors that contribute to the failure of the aforementioned components. Visual examination and fractographic analysis were performed utilizing optical and scanning electron microscopes to investigate the half-shafts’ mode of failure. Samples from both half-shafts were obtained for tensile testing, metallographic examination, chemical composition analysis, and fracture surface analysis. According to visual examination, reversed bending fatigue, occurring simultaneously with torsion loading, caused the fracture in the half-shaft to the left of the differential (rear view). Analysis of the fracture surface of the half-shaft to the right of the differential revealed that it resulted mainly from bending fatigue loading. Moreover, regarding the mechanical design safety of the half-shafts, calculations were performed considering different trajectories, limit speeds, and different design criteria. Finally, some recommendations are drawn to improve the design safety of this mechanical component.

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“…To address this, many studies have utilized the finite element method (FEM) for the axle stress analysis. Johnson et al. (2022) used FEM in the structural analysis of a lightweight composite railway axle, while Son et al.…”

Section: Introductionmentioning

confidence: 99%

“…To address this, many studies have utilized the finite element method (FEM) for the axle stress analysis. Johnson et al (2022) used FEM in the structural analysis of a lightweight composite railway axle, while Son et al (2014) used FEM to simulate the static strength of different axle sizes to determine the appropriate design for the axle's inner diameter. Asngali et al (2021) employed FEM for static and dynamic analysis in the design of a railway axle and found that the stress and deformation were within the desired standard requirements.…”

Section: Introductionmentioning

confidence: 99%

Investigation on smoothed finite element methods using linear tetrahedral elements for high-speed train hollow axle strength analysis

Jiang,

Odibelu,

Zhou

2023

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PurposeThis paper aims to investigate the performance of two novel numerical methods, the face-based smoothed finite element method (FS-FEM) and the edge-based smoothed finite element method (ES-FEM), which employ linear tetrahedral elements, for the purpose of strength assessment of a high-speed train hollow axle.Design/methodology/approachThe calculation of stress for the wheelset, comprising an axle and two wheels, is facilitated through the application of the European axle strength design standard. This standard assists in the implementation of loading and boundary conditions and is exemplified by the typical CRH2 high-speed train wheelset. To evaluate the performance of these two methods, a hollow cylinder cantilever beam is first used as a benchmark to compare the present methods with other existing methods. Then, the strength analysis of a real wheelset model with a hollow axle is performed using different numerical methods.FindingsThe results of deflection and stress show that FS-FEM and ES-FEM offer higher accuracy and better convergence than FEM using linear tetrahedral elements. ES-FEM exhibits a superior performance to that of FS-FEM using linear tetrahedral elements, showing accuracy and convergence close to FEM using hexahedral elements.Originality/valueThis study channels the novel methods (FS-FEM and ES-FEM) in the static stress analysis of a railway wheelset. Based on the careful testing of FS-FEM and ES-FEM, both methods hold promise as more efficient tools for the strength analysis of complex railway structures.

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Structural analysis for the design of a lightweight composite railway axle

Cited by 8 publications

References 13 publications

Effect of plant short fibers on the mechanical properties of carbon fiber reinforced epoxy matrix by using FEM based numerical homogenization technique

Effect of plant short fibers on the mechanical properties of carbon fiber reinforced epoxy matrix by using FEM based numerical homogenization technique

Failure Analysis of the Half-Shafts Belonging to a Three-Wheeled Electric Vehicle

Investigation on smoothed finite element methods using linear tetrahedral elements for high-speed train hollow axle strength analysis

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