Lifetime estimation in the low/medium-cycle regime using the Carpinteri–Spagnoli multiaxial fatigue criterion

Carpinteri, Andrea; Ronchei, Camilla; Spagnoli, Andrea

doi:10.1016/j.tafmec.2014.06.002

Cited by 52 publications

(46 citation statements)

References 56 publications

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“…The origins of the TCD are located in the middle of the twentieth century [11,12], but in the last two decades this theory has had a wider development, providing answers to different scientific and engineering problems (e.g., [3,6,[13][14][15][16][17][18][19][20]). …”

Section: Theoretical Background: the Line Methods And Apparent Fracturmentioning

confidence: 99%

On the Line Method apparent fracture toughness evaluations: Experimental overview, validation and some consequences on fracture assessments

Cicero

García

Madrazo

2015

Theoretical and Applied Fracture Mechanics

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This paper analyses the capacity of the Line Method to provide evaluations of the apparent fracture toughness, which is the fracture resistance exhibited by materials in notched conditions. With this aim, the experimental results obtained in 555 fracture tests are homogeneously presented and compared to the Line Method evaluations. It is remarked that the Line Method provides adequate estimates of the apparent fracture toughness, and also that it conveniently addresses the physics of the notch effect. All this makes the Line Method a valuable scientific and engineering tool for the fracture assessment of materials containing notches.

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Section: Theoretical Background: the Line Methods And Apparent Fracturmentioning

confidence: 99%

On the Line Method apparent fracture toughness evaluations: Experimental overview, validation and some consequences on fracture assessments

Cicero

García

Madrazo

2015

Theoretical and Applied Fracture Mechanics

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“…According to the above remarks, the present authors have recently proposed a strain-based multiaxial fatigue criterion in order to estimate the fatigue life of severely notched specimens under LCF [5]. Such a criterion is an extension of the critical plane-based multiaxial fatigue criterion proposed by Carpinteri et al for smooth specimens [6,7] to the case of notched ones. The above extension is formulated by implementing the concept of the control volume, related to the Strain Energy Density (SED) criterion proposed by Lazzarin et al [8,9].…”

mentioning

confidence: 86%

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

Carpinteri¹,

Fortese²,

Ronchei³

et al. 2017

Frattura Ed Integrità Strutturale

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ABSTRACT. 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 implementing the control volume concept reated to the Strain Energy Density (SED) approach: a material point located at a certain distance from the notch tip is assumed to be the verification point where to perform the above assessment. Such a distance, measured along the notch bisector, is a function of both the biaxiality ratio (defined as the ratio between the applied shear stress amplitude and the normal stress amplitude) and the control volume radii under Mode I and Mode III. Once the position of the verification point is determined, the fatigue lifetime is assessed through an equivalent strain amplitude, acting on the critical plane, together with a unique material reference curve (i.e. the Manson-Coffin curve). Some uniaxial and multiaxial fatigue data related to V-notched round bars made of titanium grade 5 alloy (Ti-6Al-4V) are examined to validate the present criterion.

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“…However, the determination of the critical plane under variable amplitude loading is a complex problem. Macha and Carpinteri et al [1,2] proposed a weight function method to determine the critical plane, which is calculated by the fracture plane orientation. Susmel et al [3] defined the critical plane by the maximum variance of the resolved shear strain.…”

Section: Introductionmentioning

confidence: 99%

Multiaxial Fatigue Life Prediction Based on Weight Function Method Under Random Loading

Wang¹,

Shang²,

Sun³

2017

dtetr

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Abstract. Based on strain parameters, a weight function method is proposed to determine the critical plane under variable amplitude axial-torsion loading. The critical plane is determined by averaging the maximum absolute shear strain plane during the time for one block loading. The averaging process is conducted through a weight function, which is proposed based on the maximum shear strain. Then, combined with the life prediction model and Wang-Brown's cycle counting method, the proposed method is used to predict the fatigue life under variable amplitude loading. The experimental data of En15R steel and 7050-T7451 aluminum alloy are used to verify the proposed method, and a good result is obtained.

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Lifetime estimation in the low/medium-cycle regime using the Carpinteri–Spagnoli multiaxial fatigue criterion

Cited by 52 publications

References 56 publications

On the Line Method apparent fracture toughness evaluations: Experimental overview, validation and some consequences on fracture assessments

On the Line Method apparent fracture toughness evaluations: Experimental overview, validation and some consequences on fracture assessments

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

Multiaxial Fatigue Life Prediction Based on Weight Function Method Under Random Loading

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