The Prediction of Fracture Toughness Properties from 3MM Diameter Punch Discs

Geary, W.; Dutton, J. T.

doi:10.1520/stp38014s

Cited by 7 publications

(7 citation statements)

References 15 publications

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“…Similarly Geary and Dutton [35] used small punch test on 3 mm diameter discs of structural steels and relationships were developed to obtain tensile properties, fracture toughness etc. Lee et al [49] developed a small punch test using rectangular specimens to determine the fracture energy.…”

Section: Small Punch Test Technique and Prediction Of Strength Propertymentioning

confidence: 99%

“…At the same time Geary and Dutton [35] carried out work on similar steels and arrived at the expression: Husain [39] conducted small punch test on three different shapes of specimens viz. circular, square and rectangular and developed empirical correlations for the predictions of fracture toughness as a function of equivalent fracture strain for the different geometries.…”

Section: Prediction Of Fracture Toughness Using Miniature Specimen Tementioning

confidence: 99%

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Factors Affecting the Mechanical Properties of Compact Bone and Miniature Specimen Test Techniques: A Review

Chittibabu¹,

Rao²,

Rao³

2016

Adv. Sci. Technol. Res. J.

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This paper presents the review concerning mechanical properties of bone and the miniature specimen test techniques. For developing a realistic understanding of how factors such as moisture content, mineralization, age, species, location, gender, rate of deformation etc. affect the mechanical properties of bone, it is critical to understand the role of these factors. A general survey on existing research work is presented on this aspect. The essential features of miniature specimen test techniques are described, along with the application of small punch test method to evaluate the mechanical behavior of materials. The procedure for the determination of tensile and fracture properties, such as: yield strength, ultimate strength, ductility, fracture toughness etc. using small punch test technique have been described. The empirical equations proposed by various investigators for the prediction of tensile and fracture properties are presented and discussed. In some cases, the predictions of material properties have been essentially made through the finite element simulation. The finite element simulation of miniature specimen test technique is also covered in this review. The use of inverse finite element procedure for the prediction of uniaxial tensile constitutive behaviour of materials is also presented.Keywords: mechanical properties, compact bone, miniature specimen, small punch test, finite element simulation and inverse finite element procedure.

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Section: Small Punch Test Technique and Prediction Of Strength Propertymentioning

confidence: 99%

Section: Prediction Of Fracture Toughness Using Miniature Specimen Tementioning

confidence: 99%

Factors Affecting the Mechanical Properties of Compact Bone and Miniature Specimen Test Techniques: A Review

Chittibabu¹,

Rao²,

Rao³

2016

Adv. Sci. Technol. Res. J.

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“…With two exceptions, all the studies reported in the current literature use the first approach, with the test being conducted under punch displacement control (Table II). These exceptions are the work of Geary and Dutton,27 who used the first approach and punch load control, and Brookfield et al,25 who used the second approach and two LVDTs.…”

Section: Estimation Of Bulk Materials Properties From Results Of Spt Amentioning

confidence: 99%

“…Some example aspects are ductility of anisotropic Zircaloy‐2 materials having various microstructures, such as those present on beam‐welded calandria tubes used in nuclear reactors;16 deformation and fracture behaviors of 7075 Al alloy substrates coated with 10‐μm‐thick layers of amorphous Ni 10 wt% P and overlaying Y 2 O 3 ‐stabilized ZrO 2 with a thickness that varied from 0.25 to 1.0 μm;21 effect of neutron irradiation on hardening in iron‐based alloys doped with Cu, P, and/or C;22 strengthening associated with the production of helium in model Fe‐Cr‐Ni alloys during irradiation to ca. 7 dpa in the high flux isotope reactor at 300–600 °C;23 ductile‐to‐brittle transition behavior;28 and tensile and fracture properties of 12 Cr turbine rotor, structural, and high‐strength offshore steels 18, 27…”

Section: Historical Developmentmentioning

confidence: 99%

Key issues involved with the use of miniature specimens in the characterization of the mechanical behavior of polymeric biomaterials—A review

Lewis

2002

J. Biomed. Mater. Res.

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This article is arranged in three parts. In the first, a brief history of the use of miniature specimens for characterizing the mechanical behavior of materials in general is given. In the second part, several trends in literature reports of small punch and small shear punch tests of ultra-high-molecular-weight polyethylene and acrylic bone cement specimens are examined critically. In this exercise, special attention is paid to one test metric; namely, the work to failure [which is the area under the punch load (P) versus punch displacement (Delta) plot up to the failure point]. In the third part of the article, seven key issues in this field are discussed. In each case, the gaps in the current knowledge base are pointed out. Among those issues are determination of sensitivity of test results to test variables, development of methods for converting P-Delta results to bulk material properties, and constitutive modeling of the mechanical behavior of a polymeric biomaterial, under both small punch and small shear punch loading.

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“…Similar linear relations were subsequently also reported in refs. [23][24][25][26]: Suzuki [24] Lee [25] Geary [26] Application of these equations to present experimental data is illustrated in Fig. 10.…”

Section: Discussionmentioning

confidence: 99%

CHARACTERIZATION OF FRACTURE IN Fe3Al-BASED ALLOY USING THE SMALL PUNCH TEST

Dobeš¹,

Dymáček²

2013

Acta Metall. Slovaca Conf.

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The small punch tests at constant deflection rate were performed on two Fe 3 Al-based alloys with additions of niobium and carbon. The purpose was to study the effect of carbides on ductility and fracture behaviour. Three main quantities were evaluated: maximum force, deflection at maximum force and fracture energy. Temperature dependence of these quantities was fully corresponding to the microscopic image of the fractured specimens. Radial cracks were observed at low temperatures, the contraction of the disc thickness was negligible and the fracture surface was characterized by cleavage facets. On the other hand, a circumferential crack clearly separated spherical cap from the rest of specimen at the highest temperatures. Reduction of the specimen thickness was observed as well as the volume analogical to necking in tensile test. Fracture surface had a dimpled appearance. It was proved that both the fracture energy and the deflection at maximum load were greater in the alloy with the greater carbon and that the ductility was not reduced by the presence of niobium carbides.

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The Prediction of Fracture Toughness Properties from 3MM Diameter Punch Discs

Cited by 7 publications

References 15 publications

Factors Affecting the Mechanical Properties of Compact Bone and Miniature Specimen Test Techniques: A Review

Factors Affecting the Mechanical Properties of Compact Bone and Miniature Specimen Test Techniques: A Review

Key issues involved with the use of miniature specimens in the characterization of the mechanical behavior of polymeric biomaterials—A review

CHARACTERIZATION OF FRACTURE IN Fe3Al-BASED ALLOY USING THE SMALL PUNCH TEST

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