Microstructure-sensitive modeling: Application to fretting contacts

Zhang, M.; Neu, Richard W.

doi:10.1016/j.ijfatigue.2009.03.023

Cited by 34 publications

(19 citation statements)

References 17 publications

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“…Most commonly employed is the Armstrong-Frederick rule for non-linear kinematic hardening [29][30][31][32], which will be used in this work. Other formulations include a superposition of linear and non-linear kinematic hardening rules [33] and a combination of the Armstrong-Frederick rule with the Ohno-Wang model for improved modelling of ratchetting behaviour [34].…”

Section: Cyclic Crystal Plasticity Materials Modelmentioning

confidence: 99%

Micromechanical methodology for fatigue in cardiovascular stents

Sweeney

McHugh

McGarry

et al. 2012

International Journal of Fatigue

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Section: Cyclic Crystal Plasticity Materials Modelmentioning

confidence: 99%

Micromechanical methodology for fatigue in cardiovascular stents

Sweeney

McHugh

McGarry

et al. 2012

International Journal of Fatigue

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“…The methodology does not take into account a number of features of the fretting fatigue problem as, for example, the surface modification due to wear. A more detailed description of fretting fatigue could be formulated by using a wear law [36] or a crystal plasticity model [37].…”

Section: Discussionmentioning

confidence: 99%

A multiaxial stress-based critical distance methodology to estimate fretting fatigue life

Araújo

Susmel

Pires

et al. 2017

Tribology International

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ABSTRACT. This work presents a methodology for fretting fatigue life estimation based on the evaluation of a multiaxial fatigue parameter at a critical distance below the contact surface. The fatigue parameter is defined using the Modified Wöhler Curve Method together with a measure of shear stress amplitude based on the Maximum Rectangular Hull concept. To apply the approach in the medium-cycle fatigue regime, the critical distance is assumed to depend on the fatigue life. Available fretting fatigue experiments conducted on a cylinder-on-flat contact configuration made of Al-4%Cu alloy were used to evaluate the methodology. Most of the fatigue life estimates were within factor-of-two boundaries.

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“…With the added complexity of a cyclic frictional contact problem, one can expect further significant increases in computational time. Nevertheless, some previous authors (Dick and Cailletaud [17] and Zhang et al [13]) have modelled fretting problems using threedimensional CP. One concern with two-dimensional CP modelling is that it misrepresents the number of grains present within a problem, so that grain orientation has a significant effect on results.…”

Section: Cylinder On Flat Contact Modelmentioning

confidence: 99%

“…This rate-dependant theory has been used extensively in the design of stent struts by McHugh and Connolly [10] and McGarry et al [11] for 316L stainless steel (SS). CP has been used by McDowell and co-workers [12][13][14] to model fretting of Ti6Al-4V.…”

Section: Introductionmentioning

confidence: 99%

“…The complex microstructure of Ti-6Al-4V is comprised of a dual phase structure containing both hexagonal close packed (HCP) and body centre cubic (BCC) crystals; the a phase has a HCP crystallographic arrangement and the a-b phase is comprised of a lamellar colony of both HCP and BCC crystallographic arrangements. Extensive modelling of Ti-6Al-4V microstructure has been carried out by McDowell [12][13][14] and Cailletuad [17,18]. Benedetti and Fontanari [19] established monotonic and cyclic stress strain curves (CSSCs) for Ti-6Al-4V while investigating fatigue crack growth.…”

Section: Introductionmentioning

confidence: 99%

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Micro-mechanical modelling of fretting fatigue crack initiation and wear in Ti–6Al–4V

McCarthy

McGarry

Leen

2014

International Journal of Fatigue

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a b s t r a c tA micro-mechanical modelling methodology is presented for predicting fretting fatigue crack nucleation in Ti-6Al-4V. The methodology is based on a combination of (i) a unit cell crystal plasticity model of Ti6Al-4V, (ii) a frictional contact model of an experimental fretting wear configuration, and (iii) implementation of a microstructure-sensitive fatigue indication parameter for prediction of crack nucleation. A novel micro-mechanical method for wear prediction is presented. A key finding is the important role of cyclic micro-plasticity in ostensibly elastic loading regimes in fretting wear, resulting in significant effects on distributions of salient fretting contact variables such as contact pressure.

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Microstructure-sensitive modeling: Application to fretting contacts

Cited by 34 publications

References 17 publications

Micromechanical methodology for fatigue in cardiovascular stents

Micromechanical methodology for fatigue in cardiovascular stents

A multiaxial stress-based critical distance methodology to estimate fretting fatigue life

Micro-mechanical modelling of fretting fatigue crack initiation and wear in Ti–6Al–4V

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