Use of electronic speckle pattern interferometry in the detection of fatigue failure in high strength steels

Rodríguez-Martín, R.; Castro, Iván; Ocaña, I.; Martı́nez-Esnaola, J.M.

doi:10.1016/j.engfailanal.2009.06.005

Cited by 14 publications

(5 citation statements)

References 5 publications

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“…Compression has been used in studies involving bones, by [8,[11][12][13][14] and [15]; biomedical research Boyd et al, [16]; [6,[17][18][19] in natural sciences [20]. In some studies it is used for the study of local deformation [16], [21].…”

Section: Compressionmentioning

confidence: 99%

Effect of using different types of methods for the derivation of elastic modulus of bone - A critical survey

2017

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Abstract. The purpose of this paper is to critically review and address the cause of variation in the values of elastic modulus (E) of bone. Properties used for materials (especially) bones is one of the crucial factors in modeling and simulation experiments with sensitive procedures such as Finite Elements. The values of elastic modulus acquired from secondary databases, literature and online repositories differ in many ways. This is due to an underlying fact that different methods are used for one definite set of species and vice versa. According to a human understanding, this might bar the perceptive of use of elastic modulus in the research when (especially) insightful procedures are in question for example Finite Element Analysis (FEA) of materials with sensitive procedures. The means and the methods, through which the values are obtained, do not follow a standard methodology. Thus, this area needs attention. Despite the advances in technology and state-of-the-art methods in the field of biomechanics and biomedical engineering there is a need to formulate a standard method which can produce reliable set of E-values. Through this paper, we seek to raise an important scientific question as to what systemic methodology should be adapted to achieve a value of elastic modulus that is not only reliable, but reasonable as well. The paper also, focus briefly on the sources of error responsible for this variation and the significance of elastic modulus values in important numerical methods such as Finite Elements (FE).

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Section: Compressionmentioning

confidence: 99%

Effect of using different types of methods for the derivation of elastic modulus of bone - A critical survey

2017

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“…Fig. 4 presents the scheme of creating a strain map in the ESPI measurement system [2,3]. NP91_1 and NP1_2 specimens have represented steel in the delivery condition without the preliminary load.…”

Section: Fig 3 Extensometer For Measuring Displacementmentioning

confidence: 99%

Evaluation of Strain Distribution for the P91 Steel under Static Load Using Espi System

Grzywna

Kukla

2014

Advances in Materials Science

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The goal of the research was to evaluate the change of displacement/strain phases in the P91 steel under static load conditions. Undertaken tests were aimed at estimation and analysis of the impact of the material state, which was subjected to loading conditions, on the distribution of stress pattern using ESPI system. Specimen made of high temperature creep resistant steel X10CrMoVNb9-1 (P91) used as a construction material for boiler steam feed heaters, vapor tanks, pressure vessels and vapor pipelines, is used in the service conditions of temperature range up of 650°C. Test samples were taken from two P91 steel pipes. One sample came from a segment of a pipeline transporting fresh vapor in time 80 000 h, under the pressure of 8.4 MPa and temperature 540 °C. The second sample was the same material but in the delivery state.

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“…Edge effects also have an important role in material processing procedures [7][8][9] . Several a) Electronic mail: ngcastrath@uem.br methods including laser interferometry have been used for investigating surface properties 10,11 , local magnetic property deteriorations in metals 12 , micro-damage evolution 13 , fatigue failure 14 , mechanical properties 15,16 , and as optical image hiding method 17,18 . This technique reveals how nanostructured surfaces and structures can be characterized, such as textured stainless steel 19 , Mylar polymer films 20 and biomaterials, for instance, polymerized hexamethyldisiloxane 21 and hydroxyapatite materials 22,23 .…”

Section: Introductionmentioning

confidence: 99%

Influence of edge effects on laser-induced surface displacement of opaque materials by photothermal interferometry

Flizikowski

Anghinoni

Rohling

et al. 2020

Journal of Applied Physics

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We demonstrate the influence of edge effects on the photothermal-induced phase shift measured by a homodyne quadrature laser interferometer and compare the experiments with rigorous theoretical descriptions of thermoelastic surface displacement of metals. The finite geometry of the samples is crucial in determining how the temperature is distributed across the material and how this affects the interferometer phase shift measurements. The optical path change due to the surface thermoelastic deformation and thermal lens in the surrounding air is decoded from the interferometric signal using analytical and numerical tools. The boundary/edge effects are found to be relevant to properly describe the interferometric signals. The tools developed in this study provide a framework for the study of finite size effects in heat transport in opaque materials and are applicable to describe not only the phase shift sensed by the interferometer but also to contribute to the photothermal-based technologies employing similar detection mechanisms.

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Use of electronic speckle pattern interferometry in the detection of fatigue failure in high strength steels

Cited by 14 publications

References 5 publications

Effect of using different types of methods for the derivation of elastic modulus of bone - A critical survey

Effect of using different types of methods for the derivation of elastic modulus of bone - A critical survey

Evaluation of Strain Distribution for the P91 Steel under Static Load Using Espi System

Influence of edge effects on laser-induced surface displacement of opaque materials by photothermal interferometry

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