Effect of confinement level on mechanical behaviour using the small punch test

Cuesta, I.I.; Rodríguez, Celestino; García, T.E.; Alegre, J.M.

doi:10.1016/j.engfailanal.2015.09.008

Cited by 10 publications

(5 citation statements)

References 19 publications

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“…Fixed amounts, such as a 0.3 mm offset, have also been suggested [68]. Although the two-tangent method and the modified version of it are highly cited in the literature [40,63,69], studies [60,70,71] show that the P y(t/10) approach produces the strongest correlation with yield strength of those methods in Fig. 4, i.e., Figure 4 Various methods for determining the yield load, P y , of the load-displacement curve of SPT, created using AW6016 T4 Pd data from [63].…”

Section: Direct Correlation With Tensile Propertiesmentioning

confidence: 99%

“…The equation directly relates k, the initial stiffness in the P-d curve, to E, the Young's modulus, via, k, a proportionality constant related to Poison's ratio and the frictional characteristics of the material in question. This relation was later normalized by dividing the initial stiffness, k, by t, the original specimen thickness, to mitigate differences to the resultant Young's modulus stemming from variations in sample thickness and produce more accurate correlations [12,18,70], e.g.,…”

Section: Direct Correlation With Tensile Propertiesmentioning

confidence: 99%

“…Although not considered an additive manufacturing technology due to its manufacturing [38,43,48,52,54,60,63,70,77,82,187,194,195,208,[210][211][212]215]. methodology, the powdered metallurgy (PM) alloys in [43] present a similar sensitivity and variance as AM materials.…”

Section: Determination and Use Of Correlation Constantsmentioning

confidence: 99%

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Mechanics of the small punch test: a review and qualification of additive manufacturing materials

Torres

Gordon

2021

J Mater Sci

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The small punch test (SPT) was developed for situations where source material is scarce, costly or otherwise difficult to acquire, and has been used for assessing components with variable, location-dependent material properties. Although lacking standardization, the SPT has been employed to assess material properties and verified using traditional testing. Several methods exist for equating SPT results with traditional stress–strain data. There are, however, areas of weakness, such as fracture and fatigue approaches. This document outlines the history and methodologies of SPT, reviewing the body of contemporary literature and presenting relevant findings and formulations for correlating SPT results with conventional tests. Analysis of literature is extended to evaluating the suitability of the SPT for use with additively manufactured (AM) materials. The suitability of this approach is shown through a parametric study using an approximation of the SPT via FEA, varying material properties as would be seen with varying AM process parameters. Equations describing the relationship between SPT results and conventional testing data are presented. Correlation constants dictating these relationships are determined using an accumulation of data from the literature reviewed here, along with novel experimental data. This includes AM materials to assess the fit of these and provide context for a wider view of the methodology and its interest to materials science and additive manufacturing. A case is made for the continued development of the small punch test, identifying strengths and knowledge gaps, showing need for standardization of this simple yet highly versatile method for expediting studies of material properties and optimization.

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Section: Direct Correlation With Tensile Propertiesmentioning

confidence: 99%

Section: Direct Correlation With Tensile Propertiesmentioning

confidence: 99%

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Mechanics of the small punch test: a review and qualification of additive manufacturing materials

Torres

Gordon

2021

J Mater Sci

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“…Among them, the small punch test (SPT) is one of the most popular. The SPT test has received great attention in recent years [2][3][4][5][6][7][8][9][10][11]. Its usefulness in determining the tensile properties of metallic alloys (yield strength, ultimate strength and even ductility) has already been proved.…”

Section: Introductionmentioning

confidence: 99%

Use of notched small punch test specimens for the determination of fracture properties in structural steels

Álvarez

Rodríguez

Belzunce

et al. 2020

Theoretical and Applied Fracture Mechanics

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“…Pocos han sido los investigadores que han abordado la posibilidad de hacer uso del ensayo SPT para obtener el módulo de elasticidad de los materiales, más allá de los publicados por Fleury [54] y Kurtz [53]. Un trabajo de Cuesta et al [97] indicaba dicha opción en base a lo que señalaba como pendiente inicial de la curva SPT (Slope ini ) en la zona I.…”

Section: Avances De 2000 a 2010unclassified

Estudio y mejora de la correlación de propiedades mecánicas con los ensayos miniatura de punzonado

Calaf-Chica¹

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Effect of confinement level on mechanical behaviour using the small punch test

Cited by 10 publications

References 19 publications

Mechanics of the small punch test: a review and qualification of additive manufacturing materials

Mechanics of the small punch test: a review and qualification of additive manufacturing materials

Use of notched small punch test specimens for the determination of fracture properties in structural steels

Estudio y mejora de la correlación de propiedades mecánicas con los ensayos miniatura de punzonado

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