Neutron Residual Stress Measurement of Railway Rails Using Image Plate

Sasaki, Toshihiko; Yaguchi, Osama; Suzuki, Hiroshi

doi:10.4028/www.scientific.net/msf.652.260

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…A prominent example is the stress and the degradation of railway tracks. Residual stresses and texture of rails have frequently been measured 275–282. The increase of axle loads of the freight trains and the increase of speed of passenger trains within recent years – leading to integrated loads beyond 10 Mtons y −1 – have led to an increase of wear of the rails that appeared, for example, in an increase of frequency of structure modifications and defects in their surface layers 275.…”

Section: Other Transport Systemsmentioning

confidence: 99%

Research with Neutron and Synchrotron Radiation on Aerospace and Automotive Materials and Components

Kaysser¹,

Eßlinger²,

Abetz³

et al. 2011

Adv Eng Mater

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Characterization with neutrons and synchrotron radiation has yielded essential contributions to the research and development of automotive and aerospace materials, processing methods, and components. This review mainly emphasises developments related to commercial passenger airplanes and light‐duty cars. Improved and partly new materials for the reduction of airframe weight and joining by laser‐beam welding and friction stir welding are ongoing areas of assessment. Chemical reactions, microstructure development, and residual stresses are frequently measured. Polymers and polymer matrix composites often require special experimental techniques. The thrust‐to‐weight ratio of aero‐engines is increasing due to the improved design of components and the use of innovative materials. Investigations on superalloys, γ‐TiAl, and thermal barrier coatings are described in some detail. A discussion of the use of neutron and synchrotron diffraction in automotive applications covers the analysis of surface effects with respect to lubricants and wear, as well as the investigation of microstructure development, deformation, and fatigue behavior of materials, welds and components. Special steels, Al and Mg alloys are discussed and residual stresses in automotive components such as gears or crankshafts are described. Applications of characterization methods on membranes for polymeric membrane fuel cells and on nanocrystalline metal hydrides for hydrogen storage are shown. The degradation of railway tracks after long‐term use is taken as an example for the application of synchrotron methods to transport systems beyond the commercial aircraft and light duty passenger car.

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Section: Other Transport Systemsmentioning

confidence: 99%

Research with Neutron and Synchrotron Radiation on Aerospace and Automotive Materials and Components

Kaysser¹,

Eßlinger²,

Abetz³

et al. 2011

Adv Eng Mater

View full text Add to dashboard Cite

show abstract

“…A radioactive source is required for the neutron diffraction method, which makes it expensive and time consuming. Therefore, there are many complexities and difficulties in the application of non-destructive techniques for the measurement of residual stresses [21]. All these experimental methods can offer information of stress distribution on the surface of workpiece.…”

Section: Introductionmentioning

confidence: 99%

Analytical Model of a Multi-Step Straightening Process for Linear Guideways Considering Neutral Axis Deviation

et al. 2018

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Abstract:The cross-sectional shape of a linear guideway has been processed before the straightening process. The cross-section features influence not only the position of the neutral axis, but also the applied and residual stresses along the longitudinal direction, especially in a multi-step straightening process. This paper aims to present an analytical model based on elasto-plastic theory and three-point reverse bending theory to predict straightening stroke and longitudinal stress distribution during the multi-step straightening process of linear guideways. The deviation of the neutral axis is first analyzed considering the asymmetrical features of the cross-section. Owing to the cyclic loading during the multi-step straightening process, the longitudinal stress curves are then calculated using the linear superposition of stresses. Based on the cross-section features and the superposition of stresses, the bending moment is corrected to improve the predictive accuracy of the multi-step straightening process. Finite element analysis, as well as straightening experiments, have been performed to verify the applicability of the analytical model. The proposed approach can be implemented in the multi-step straightening process of linear guideways with similar cross-sectional shape to improve the straightening accuracy.

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The Use of Neutron and Synchrotron Research for Aerospace and Automotive Materials and Components

Kaysser

Eßlinger

Abetz

et al. 2017

Neutrons and Synchrotron Radiation in Engineering Materials Science

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Neutron Residual Stress Measurement of Railway Rails Using Image Plate

Cited by 4 publications

References 9 publications

Research with Neutron and Synchrotron Radiation on Aerospace and Automotive Materials and Components

Research with Neutron and Synchrotron Radiation on Aerospace and Automotive Materials and Components

Analytical Model of a Multi-Step Straightening Process for Linear Guideways Considering Neutral Axis Deviation

The Use of Neutron and Synchrotron Research for Aerospace and Automotive Materials and Components

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