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Miscellanea Views: 1,324 Downloads: 376 Vol. 8, No. 30 (2014) September 10, 2014 pp. pages 191-200

The specific heat loss combined with the thermoelastic effect for an experimental analysis of the mean stress influence on axial fatigue of stainless steel plain specimens

G. Meneghetti, M. Ricotta, B. Atzori

The energy dissipated to the surroundings as heat in a unit volume of material per cycle, Q, was recently proposed by the authors as fatigue damage index and it was successfully applied to correlate fatigue data obtained by carrying out…

10.3221/IGF-ESIS.30.25Copy the DOI link

Details: The specific heat loss combined with the thermoelastic effect for an experimental analysis of the mean stress influence on axial fatigue of stainless steel plain specimens PDF

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Miscellanea Views: 1,486 Downloads: 812 Vol. 8, No. 30 (2014) September 8, 2014 pp. pages 84-94

SCC and Corrosion Fatigue characterization of a Ti-6Al-4V alloy in a corrosive environment – experiments and numerical models

S. Baragetti, F. Villa

In the present article, a review of the complete characterization in different aggressive media of a Ti-6Al-4V titanium alloy, performed by the Structural Mechanics Laboratory of the University of Bergamo, is presented. The light alloy has…

10.3221/IGF-ESIS.30.12Copy the DOI link

Details: SCC and Corrosion Fatigue characterization of a Ti-6Al-4V alloy in a corrosive environment – experiments and numerical models PDF

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Miscellanea Views: 839 Downloads: 738 Vol. 11, No. 41 (2017) June 28, 2017 pp. Pages 90-97

Notched multiaxial fatigue of Al7050-T7451: on the need for an equivalent process zone size

M.V.C Sá, J.L.A Ferreira, C.R.M da Silva, J.A. Araújo

The aim of this work is to investigate stress gradient effects on the fatigue life estimation of notched Al 7050-T7451 specimens under combined torsion and push-pull loading conditions. Initially, simple push-pull and torsion fatigue tests…

10.3221/IGF-ESIS.41.13Copy the DOI link

Details: Notched multiaxial fatigue of Al7050-T7451: on the need for an equivalent process zone size PDF

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Miscellanea Views: 1,083 Downloads: 544 Vol. 3, No. 9 (2009) pp. pages 46-54

Fatigue life estimation in welded joints under multiaxial loadings

Andrea Carpinteri, Andrea Spagnoli, Sabrina Vantadori

Welded joints are frequently locations for cracks initiation and propagation that may cause fatigue failure of engineering structures. Biaxial or triaxial stress-strain states are present in the vicinity of welded joints, due to local…

10.3221/IGF-ESIS.09.05Copy the DOI link

Details: Fatigue life estimation in welded joints under multiaxial loadings PDF

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Miscellanea Views: 1,562 Downloads: 525 Vol. 10, No. 38 (2016) October 3, 2016 pp. Pages 215-223

Averaged strain energy density-based synthesis of crack initiation life in notched steel bars under torsional fatigue

Filippo Berto, Alberto Campagnolo, Giovanni Meneghetti, Keisuke Tanaka

The torsional fatigue behaviour of circumferentially notched specimens made of austenitic stainless steel, SUS316L, and carbon steel, SGV410, characterized by different notch root radii has been recently investigated by Tanaka. In that…

10.3221/IGF-ESIS.38.29Copy the DOI link

Details: Averaged strain energy density-based synthesis of crack initiation life in notched steel bars under torsional fatigue PDF

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Miscellanea Views: 1,022 Downloads: 579 Vol. 5, No. 16 (2011) pp. pages 5-17

On the overall accuracy of the Modified Wöhler Curve Method in estimating high-cycle multiaxial fatigue strength

Luca Susmel

The aim of the present paper is to systematically investigate the accuracy of the so-called Modified Wöhler Curve Method (MWCM) in estimating high-cycle fatigue strength of plain and notched engineering materials damaged by in-service…

10.3221/IGF-ESIS.16.01Copy the DOI link

Details: On the overall accuracy of the Modified Wöhler Curve Method in estimating high-cycle multiaxial fatigue strength PDF

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Miscellanea Views: 1,501 Downloads: 616 Vol. 11, No. 41 (2017) June 28, 2017 pp. Pages 8-15

Crack initiation life in notched Ti-6Al-4V titanium bars under uniaxial and multiaxial fatigue: synthesis based on the averaged strain energy density approach

Giovanni Meneghetti, Alberto Campagnolo, Filippo Berto, Keisuke Tanaka

The fatigue behaviour of circumferentially notched specimens made of titanium alloy, Ti-6Al-4V, has been analysed. To investigate the notch effect on the fatigue strength, pure bending, pure torsion and multiaxial bending-torsion fatigue…

10.3221/IGF-ESIS.41.02Copy the DOI link

Details: Crack initiation life in notched Ti-6Al-4V titanium bars under uniaxial and multiaxial fatigue: synthesis based on the averaged strain energy density approach PDF

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Miscellanea Views: 1,263 Downloads: 519 Vol. 7, No. 25 (2013) April 11, 2013 pp. Pages 138-144

Initiation and growth behavior of very-long microstructurally short fatigue cracks

P. Lorenzino, A. Navarro

The present paper describes a novel experimental technique recently presented that allows one to study interactions between the crack and microstructural barriers with an unprecedented level of ease and detail. The method consists in…

10.3221/IGF-ESIS.25.20Copy the DOI link

Details: Initiation and growth behavior of very-long microstructurally short fatigue cracks PDF

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Miscellanea Views: 1,139 Downloads: 894 Vol. 11, No. 39 (2017) December 15, 2016 pp. Pages 110-117

Fatigue crack behaviour: comparing three-point bend test and wedge splitting test data on vibrated concrete using Paris' law

S. Seitl, T. Thienpont, W. De Corte De Corte

The fatigue behaviour of concrete has become more important for the design of constructions due to the desire to build slimmer structures, which are more sensitive to fatigue loading. This article aims to evaluate and compare the fatigue…

10.3221/IGF-ESIS.39.12Copy the DOI link

Details: Fatigue crack behaviour: comparing three-point bend test and wedge splitting test data on vibrated concrete using Paris' law PDF

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Miscellanea Views: 1,091 Downloads: 461 Vol. 10, No. 37 (2016) June 13, 2016 pp. 382-394

An elasto-plastic approach to estimate lifetime of notched components under variable amplitude fatigue loading: a preliminary investigation

N. Zuhair Faruq

The present paper is concerned with the formulation of an elasto-plastic strain based approach suitable for assessing fatigue strength of notched components subjected to in-service variable amplitude cyclic loading. The hypothesis is…

10.3221/IGF-ESIS.37.49Copy the DOI link

Details: An elasto-plastic approach to estimate lifetime of notched components under variable amplitude fatigue loading: a preliminary investigation PDF

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Miscellanea Views: 984 Downloads: 641 Vol. 10, No. 35 (2016) December 29, 2015 pp. pages 82-87

Microstructure dependence of fatigue crack propagation behavior in wrought magnesium alloy

S. Morita, S. Fujiwara, T. Hori, N. Hattori, H. Somekawa, T. Mayama

This paper deals with the fatigue crack propagation behavior of rolled AZ31B magnesium alloy (grain size: approximately 40 ?m). Fatigue crack propagation tests were performed on single edge notched tension specimens at a stress ratio of R…

10.3221/IGF-ESIS.35.10Copy the DOI link

Details: Microstructure dependence of fatigue crack propagation behavior in wrought magnesium alloy PDF

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Miscellanea Views: 1,638 Downloads: 507 Vol. 11, No. 41 (2017) June 28, 2017 pp. Pages 66-70

Joined application of a multiaxial critical plane criterion and a strain energy density criterion in low-cycle fatigue

Andrea Carpinteri, Giovanni Fortese, Camilla Ronchei, Daniela Scorza, Sabrina Vantadori, Filippo Berto

In the present paper, the multiaxial fatigue life assessment of notched structural components is performed by employing a strain-based multiaxial fatigue criterion. Such a criterion, depending on the critical plane concept, is extended by…

10.3221/IGF-ESIS.41.10Copy the DOI link

Details: Joined application of a multiaxial critical plane criterion and a strain energy density criterion in low-cycle fatigue PDF

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Fatigue Views: 693 Downloads: 505 Vol. 14, No. 53 (2020) July 19, 2020 pp. 81-91

Low cycle fatigue damage model and sensitivity analysis of fatigue crack initiation by finite element approach

Zhiqiang Wang, Xiaoguang Huang, Dian-hao Zhang

To meet the design requirements, different types of defects are often machined on the surface of fatigue components. Local stress concentration formed at the notch accelerate the initiation of fatigue crack, therefore greatly shorten the…

10.3221/IGF-ESIS.53.07Copy the DOI link

Details: Low cycle fatigue damage model and sensitivity analysis of fatigue crack initiation by finite element approach PDF Visual Abstract

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Miscellanea Views: 974 Downloads: 582 Vol. 10, No. 35 (2016) December 29, 2015 pp. pages 114-124

Surface crack growth subject to bending and biaxial tension-compression

V. Shlyannikov, A. Tumanov, A. Zakharov, A. Gerasimenko

Fatigue surface crack growth and the in-plane and out-of-plane constraint effects are studied through experiments and computations for aluminium alloy D16T. Subjects for studies are cruciform specimens under different biaxial loading and…

10.3221/IGF-ESIS.35.14Copy the DOI link

Details: Surface crack growth subject to bending and biaxial tension-compression PDF

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SI: Modeling in Structural Integrity Views: 818 Downloads: 357 Vol. 19, No. 71 (2025) November 12, 2024 pp. 211-222

Critical length parameter of HDPE and its use in fatigue lifetime predictions

Kamila Kozáková, Lukáš Trávníček, Jan Poduška, Jan Klusák

The contribution describes the fatigue lifetime predictions of polyethylene notched specimens based on the theory of critical distance. The approach uses the line method, which averages the axial stress over the critical distance. The…

10.3221/IGF-ESIS.71.15Copy the DOI link

Details: Critical length parameter of HDPE and its use in fatigue lifetime predictions PDF HTML Visual Abstract

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Miscellanea Views: 1,887 Downloads: 574 Vol. 9, No. 34 (2015) September 28, 2015

High temperature fatigue tests and crack growth in 40CrMoV13.9 notched components

P. Gallo, F. Berto

The present paper addresses experimentally the high temperature fatigue of 40CrMoV13.9 steel and the effect of surface roughness on fatigue strength and crack initiation. The 40CrMoV13.9 steel is widely used in different engineering high…

10.3221/IGF-ESIS.34.19Copy the DOI link

Details: High temperature fatigue tests and crack growth in 40CrMoV13.9 notched components PDF

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Fatigue and Fracture of metallic alloys Views: 1,118 Downloads: 437 Vol. 19, No. 74 (2025) September 13, 2025 pp. 385-414

Very High Cycle Fatigue (VHCF) of notched specimens: a review

Paolo Zuliani, Carlo Boursier Niutta, Davide Salvatore Paolino, Filippo Berto, Andrea Tridello

A large number of mechanical components are subjected to fatigue loading beyond 10⁶ cycles. The VHCF behaviour of smooth specimens has been extensively investigated in the recent years, even if more efforts are necessary to reveal the…

10.3221/IGF-ESIS.74.24Copy the DOI link

Details: Very High Cycle Fatigue (VHCF) of notched specimens: a review PDF HTML Visual Abstract

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Miscellanea Views: 2,033 Downloads: 697 Vol. 11, No. 41 (2017) June 28, 2017 pp. Pages 79-89

Multiaxial fatigue strength of titanium alloys

Filippo Berto, Alberto Campagnolo, Torgeir Welo, Andrea Carpinteri

The present paper investigates the multiaxial fatigue strength of sharp V-notched components made of titanium grade 5 alloy (Ti-6Al-4V). Axisymmetric notched specimens have been tested under combined tension and torsion fatigue loadings…

10.3221/IGF-ESIS.41.12Copy the DOI link

Details: Multiaxial fatigue strength of titanium alloys PDF

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Miscellanea Views: 1,241 Downloads: 481 Vol. 11, No. 41 (2017) June 28, 2017 pp. Pages 236-244

On short cracks that depart from elastoplastic notch tips

Verônica Miquelin Machado, Jaime Tupiassú Pinho de Castro, Marco Antonio Meggiolaro

The behavior of short cracks that depart from elastoplastic notch tips is modeled to estimate the stresses required to initiate and to propagate cracks in notched structural components, and to evaluate the size of tolerable crack-like…

10.3221/IGF-ESIS.41.32Copy the DOI link

Details: On short cracks that depart from elastoplastic notch tips PDF

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SI: Russian mechanics contributions for Structural Integrity Views: 949 Downloads: 766 Vol. 17, No. 65 (2023) June 22, 2023 pp. 100-111

Fatigue life investigation of notched TC4 specimens subjected to different patterns of laser shock peening

Anastasia Iziumova, Maxim Zhelnin, Anastasia Kostina, Aleksei Vshivkov, Elena Gachegova, Oleg Plekhov, S. Swaroop

The exhaustion of constructive ways for increasing the service life of parts has led to the development of new methods which can improve their material properties during operation under various loading conditions. Laser shock peening (LSP)…

10.3221/IGF-ESIS.65.08Copy the DOI link

Details: Fatigue life investigation of notched TC4 specimens subjected to different patterns of laser shock peening PDF Visual Abstract

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Miscellanea Views: 1,323 Downloads: 474 Vol. 11, No. 42 (2017) September 29, 2017 pp. Pages 105-118

Probabilistic fatigue S-N curves derivation for notched components

P. Raposo, J.A.F.O. Correia, A.M.P. De Jesus, R.A.B. Calçada

Europe has a number of ancient riveted metallic bridges, constructed during the second half of the 19th century up to the middle of the 20th century, which are still in operation. In this paper, a unified approach is presented to generate…

10.3221/IGF-ESIS.42.12Copy the DOI link

Details: Probabilistic fatigue S-N curves derivation for notched components PDF

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Miscellanea Views: 1,018 Downloads: 784 Vol. 12, No. 44 (2018) March 18, 2018 pp. 49-63

On notch and crack size effects in fatigue, Paris’ law and implications for Wöhler curves

Michele Ciavarella

As often done in design practice, the Wöhler curve of a specimen, in the absence of more direct information, can be crudely retrieved by interpolating with a power-law curve between static strength at a given conventional low number of…

10.3221/IGF-ESIS.44.05Copy the DOI link

Details: On notch and crack size effects in fatigue, Paris’ law and implications for Wöhler curves PDF

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Miscellanea Views: 1,030 Downloads: 491 Vol. 11, No. 41 (2017) June 28, 2017 pp. Pages 299-306

The heat energy dissipated in a control volume to correlate the crack propagation rate in stainless steel specimens

G. Meneghetti, M. Ricotta

Metallic materials dissipate thermal energy when subjected to fatigue. Some of them, due a favorable combination of thermo-physical material properties, exhibit a significant temperature rise, which can be easily measured in-situ by means…

10.3221/IGF-ESIS.41.40Copy the DOI link

Details: The heat energy dissipated in a control volume to correlate the crack propagation rate in stainless steel specimens PDF

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Miscellanea Views: 920 Downloads: 515 Vol. 10, No. 37 (2016) June 13, 2016 pp. 228-233

Biaxial fatigue tests of notched specimens for AISI 304L stainless steel

G. Beretta, V. Chaves, A. Navarro

High cycle fatigue tests were conducted for stainless steel AISI 304L. The geometry was a thin walled tube with a passing through hole. The tests were axial, torsional and in-phase axial-torsional, all of them under load control with R =…

10.3221/IGF-ESIS.37.30Copy the DOI link

Details: Biaxial fatigue tests of notched specimens for AISI 304L stainless steel PDF

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Miscellanea Views: 959 Downloads: 518 Vol. 9, No. 33 (2015) June 19, 2015 pp. pages 105-110

Gradient-enriched linear-elastic tip stresses to perform the highcycle fatigue assessment of notched plain concrete

C. Bagni, H. Askes, L. Susmel

Gradient Elasticity (GE) allows the stress analysis to be performed by taking into account the size of the dominant source of microstructural heterogeneity via a suitable length scale parameter. This is done by simply assuming that the…

10.3221/IGF-ESIS.33.14Copy the DOI link

Details: Gradient-enriched linear-elastic tip stresses to perform the highcycle fatigue assessment of notched plain concrete PDF

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Miscellanea Views: 1,131 Downloads: 413 Vol. 13, No. 47 (2019) December 2, 2018 pp. 126-140

Influence of Notch Sensitivity and Crack Initiation Site on Low Cycle Fatigue Life of Notched Components under Multiaxial Non-proportional Loading

Stefano Bressan, Fumio Ogawa, Takamoto Itoh, Filippo Berto

A series of strain-controlled multiaxial low cycle fatigue (LCF) tests under proportional and non-proportional loading conditions have been conducted on notched specimens. Cylindrical bars of Al 6061 aluminum alloy and AISI 316L stainless…

10.3221/IGF-ESIS.47.10Copy the DOI link

Details: Influence of Notch Sensitivity and Crack Initiation Site on Low Cycle Fatigue Life of Notched Components under Multiaxial Non-proportional Loading PDF Visual Abstract

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Miscellanea Views: 1,468 Downloads: 554 Vol. 13, No. 47 (2019) December 5, 2018 pp. 383-393

The Strain energy density to estimate lifetime of notched components subjected to variable amplitude fatigue loading

Luca Susmel, Filippo Berto, Zheng Hu

In the present paper, the approach based on the strain energy density (SED) averaged over a structural volume is reformulated to estimate the lifetime of notched components subjected to variable amplitude (VA) uniaxial fatigue loading. The…

10.3221/IGF-ESIS.47.28Copy the DOI link

Details: The Strain energy density to estimate lifetime of notched components subjected to variable amplitude fatigue loading PDF Visual Abstract

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Miscellanea Views: 1,408 Downloads: 626 Vol. 10, No. 38 (2016) October 3, 2016 pp. Pages 26-35

Crack initiation behavior of notched specimens on heat resistant steel under service type loading at high temperature

Lu Cui, Peng Wang

Cracks at notches deserve special consideration in the design of steam turbine components. This work is addressed to investigate the crack initiation behavior a 10%Cr rotor steel with the help of notched specimens under service-type…

10.3221/IGF-ESIS.38.04Copy the DOI link

Details: Crack initiation behavior of notched specimens on heat resistant steel under service type loading at high temperature PDF

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SI: Crack Paths Views: 1,154 Downloads: 1,016 Vol. 13, No. 47 (2019) December 5, 2018 pp. 425-436

Assessment of tensile and fatigue behavior of PEEK in a physiologically relevant environment

Mirco Peron, Jan Torgersen, Filippo Berto

In the last decades the necessity of implant devices is continuously increasing. The researchers have thus focused their attentions on the development of new biocompatible materials, in particular polymers. Among them, polyetheretherketone…

10.3221/IGF-ESIS.47.33Copy the DOI link

Details: Assessment of tensile and fatigue behavior of PEEK in a physiologically relevant environment PDF Visual Abstract

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SI: Fracture and Structural integrity: ten years of F&IS Views: 826 Downloads: 507 Vol. 13, No. 47 (2019) December 6, 2018 pp. 334-347

Analysis of dissipated energy and temperature fields at severe notches of AISI 304L stainless steel specimens

Daniele Rigon, Mauro Ricotta, Giovanni Meneghetti

In the last years, a large amount of fatigue test results from plain and bluntly notched specimens made of AISI 304L stainless steel were synthetized in a single scatter band by adopting the specific heat loss per cycle (Q) as a damage…

10.3221/IGF-ESIS.47.25Copy the DOI link

Details: Analysis of dissipated energy and temperature fields at severe notches of AISI 304L stainless steel specimens PDF Visual Abstract

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SI: Portuguese contributions for Structural Integrity Views: 552 Downloads: 406 Vol. 13, No. 48 (2019) March 9, 2019 pp. 666-675

Fatigue crack growth in notched specimens: a numerical analysis: Fatigue crack growth in notched specimens

Fernando Ventura Antunes, Ricardo Branco, Pedro Prates, José Domingos Costa

Fatigue crack growth (FCG) is linked to irreversible and non-linear processes happening at the crack tip, which explains different problems observed in the use of da/dN-DK curves. The replacement of DK by non-linear crack tip parameters…

10.3221/IGF-ESIS.48.63Copy the DOI link

Details: Fatigue crack growth in notched specimens: a numerical analysis: Fatigue crack growth in notched specimens PDF Visual Abstract

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