Evaluation of toughness degradation by small punch (SP) tests for neutron-irradiated 2Cr-1Mo steel

Suzuki, Masahide; Eto, Minoru; Fukaya, K.; Nishiyama, Yutaka; Kodaira, T.; Oku, Tatsuo; Adachi, Makoto; Umino, Akira; Takahashi, Ikuo; Misawa, Toshihei; Hamaguchi, Yoshikazu

doi:10.1016/0022-3115(91)90119-r

Cited by 37 publications

(12 citation statements)

References 9 publications

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“…Suzuki et al [81] also reported a linear trend for a 2.25Cr-1Mo steel between fracture toughness J IC and fracture strain ε qf as follows:…”

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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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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“…Suzuki et al [81] also reported a linear trend for a 2.25Cr-1Mo steel between fracture toughness J IC and fracture strain ε qf as follows:…”

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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“…The SPT is nowadays used to determine the tensile properties of metallic materials when the aim is to examine very small regions, such as the heat‐affected zone (HAZ) of a weld, 2–4 a coating or the layer affected by a surface treatment. The SPT was first used in the nuclear industry to show the evolution of materials submitted to irradiation 5,6 . It was shown to enable the obtaining of quite reliable, conventional mechanical properties (yield strength, ultimate tensile strength and ductile‐to‐brittle transition temperature) 7–10 .…”

Section: Introductionmentioning

confidence: 99%

“…The SPT was first used in the nuclear industry to show the evolution of materials submitted to irradiation. 5,6 It was shown to enable the obtaining of quite reliable, conventional mechanical properties (yield strength, ultimate tensile strength and ductile-tobrittle transition temperature). [7][8][9][10] Subsequently, several authors 9,[11][12][13][14] have tried to obtain fracture parameters (K Ic , fracture energy, damage parameters) using the same type of samples.…”

Section: Introductionmentioning

confidence: 99%

Application of the small punch test to determine the fracture toughness of metallic materials

Cárdenas

Belzunce

Rodríguez

et al. 2012

Fatigue Fract Eng Mat Struct

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A B S T R A C TA new methodology to determine the elasto-plastic fracture toughness, J Ic , by means of notched small punch tests (SPT) samples is reported. Standard SPT samples were used after being longitudinally notched machined from the centre of one side of the sample to the centre of the opposite side, producing a notch depth-to-thickness ratio a/t = 0.4. The onset of crack initiation was experimentally determined directly from the experimental load-displacement plot of the test and also with the aid of scanning electron microscope observations performed on different samples, with tests being interrupted at different percentages of the maximum registered load. The test was also modelled using finite element analysis and the J-integral was evaluated as a contour integral in ABAQUS. The obtained results were compared with the critical J values of the steel determined using standard tests (J-R curves) and the differences found were duly justified.Keywords API steels; fracture; small punch test (SPT). N O M E N C L A T U R Ea = crack length or depth of notch API = American Petroleum Institute COD = crack opening displacement FE = finite element HAZ = heat-affected zone HV = Vickers hardness J = J-integral J Ic = critical J-integral (critical value of fracture energy) K = strength coefficient of the power hardening law K Ic = critical stress intensity factor for mode I of load n = strain hardening exponent [n∈ (0,1)] R = R-curve (resistance curve) SE(B) = single edge bending SEM = scanning electron microscope SPT = small punch test T = thickness of the specimen W = width of the specimen 2D = two-dimensional 3D = three-dimensional a = crack length increment ε p = plastic strain σ = stress Correspondence: I. Peñuelas.

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“…Más centrados en las propiedades mecánicas objeto de estudio en la presente tesis, Mao et al ([37], [38]) publicaron los resultados de dos investigaciones en las que hicieron uso de sus ecuaciones de correlación del límite elástico (2.4), resistencia a la tracción (2.5) y tenacidad a fractura para caracterizar distintos metales. El uso de estas ecuaciones de correlación se extendió al trabajo de otros autores como Suzuki et al [39]. Aunque ciertamente el comportamiento de la carga de fluencia P y y la carga máxima P m de Mao tendían a presentar una correlación con el límite elástico y la resistencia a la tracción de tipo lineal, el nivel de dispersión de dicha correlación era muy elevado.…”

Section: Avances Durante Los Años 90unclassified

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

Calaf-Chica¹

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Evaluation of toughness degradation by small punch (SP) tests for neutron-irradiated 2Cr-1Mo steel

Cited by 37 publications

References 9 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

Application of the small punch test to determine the fracture toughness of metallic materials

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

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