Unraveling the myth of closure corrections: Sharpening the definition of opening and closure stresses with an energy approach

Kuijk, Jesse J.A. van; Alderliesten, R.C.; Benedictus, Rinze

doi:10.1016/j.ijfatigue.2020.106016

Cited by 10 publications

(2 citation statements)

References 57 publications

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“…Despite some doubts expressed on the role played by crack closure in regulating crack driving force or fatigue crack growth rates, the enhancement of experimental methodologies has led to a progressively deeper understanding of the comprehensive information surrounding the crack tip. [122][123][124] Applying the DIC method, the fatigue deformation behavior can be elu- cidated quantitatively, as mentioned in section 3. The forthcoming section will offer a detailed discussion.…”

Section: Small Crack Propagation Assessmentmentioning

confidence: 99%

In situ SEM fatigue testing technology for metallic materials: a review

Zhang,

Li,

Zhang

et al. 2024

Nanoscale

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Section: Small Crack Propagation Assessmentmentioning

confidence: 99%

In situ SEM fatigue testing technology for metallic materials: a review

Zhang,

Li,

Zhang

et al. 2024

Nanoscale

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“…As outlined in [48][49][50][51][52][53][54][55][56][57][58][59][60][61][62][63][64] variants of this approach are now widely used to model the growth of long cracks in conventionally manufactured metals. However, it should also be noted that it has recently been suggested [65] that R ratio effects on the growth of long cracks can be interpreted as a reflection of the effect of the environment on the crack tip region rather than crack closure per se.…”

Section: Introductionmentioning

confidence: 99%

On the Link between Plastic Wake Induced Crack Closure and the Fatigue Threshold

Jones,

Ang,

Phan

et al. 2024

Metals

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This purpose of this paper is to examine the relationship between crack growth equations based on Elber’s original plastic wake induced crack closure concept and the fatigue threshold as defined by the American Society for Testing and Materials (ASTM) fatigue test standard ASTM E647-15el. It is shown that, for a number of conventionally manufactured metals, the function U(R), where R is the ratio of the minimum to maximum applied remote stress, that is used to relate the stress intensity factor ΔK to the effective stress intensity factor ΔKeff is inversely proportional to the fatigue threshold ΔKth(R). This finding also results in a simple closed form equation that relates the crack opening stress intensity factor Ko(R) to ΔK, Kmax, and the fatigue threshold terms ΔKth(R) and ΔKeff,th. It is also shown that plotting da/dN as function of ΔK/ΔKth(R) would appear to have the potential to help to identify the key fracture mechanics parameters that characterise the effect of test temperature on crack growth. As such, for conventionally manufactured metals, plotting da/dN as function of ΔK/ΔKth(R) would appear to be a useful addition to the tools available to assess the fracture mechanics parameters affecting crack growth.

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