Fatigue crack closure: a review of the physical phenomena

R Pippan, A Hohenwarter - Fatigue & fracture of engineering …, 2017 - Wiley Online Library
Plasticity‐induced, roughness‐induced and oxide‐induced crack closures are reviewed.
Special attention is devoted to the physical origin, the consequences for the experimental …

[HTML][HTML] The cyclic R-curve–determination, problems, limitations and application

J Maierhofer, S Kolitsch, R Pippan, HP Gänser… - Engineering fracture …, 2018 - Elsevier
The so-called cyclic R curve, ie the crack size dependence of the fatigue crack propagation
threshold in the physically short crack regime, is a key parameter for bringing together …

Numerical modelling of fatigue crack closure and its implication on crack front curvature using ΔCTODp

T Oplt, T Vojtek, R Kubíček, P Pokorný… - International Journal of …, 2023 - Elsevier
One of the widely used approaches to characterize fatigue crack propagation is the use of
the effective stress intensity factor range ΔK eff, which relies on determination of crack …

A numerical study of plasticity induced crack closure under plane strain conditions

FV Antunes, AG Chegini, R Branco, D Camas - International Journal of …, 2015 - Elsevier
The level of plasticity induced crack closure (PICC) is greatly affected by stress state. Under
plane strain conditions, however, the level and even the existence of PICC still are …

Finite element meshes for optimal modelling of plasticity induced crack closure

FV Antunes, D Camas, L Correia, R Branco - Engineering fracture …, 2015 - Elsevier
The main goal here is to optimise the finite element mesh used to predict plasticity induced
crack closure (PICC). A numerical model was developed for a M (T) specimen made of 6016 …

Load sequence effects in fatigue crack growth of thick-walled welded C–Mn steel members

J Maljaars, R Pijpers, H Slot - International Journal of Fatigue, 2015 - Elsevier
Many welded steel structures in marine, offshore, and infrastructural industries are subjected
to variable amplitude (VA) fatigue loads. It is well known that the level and sequence of the …

Reconsiderations of fatigue crack growth at negative stress ratios: Finite element analyses

C Benz, M Sander - Engineering Fracture Mechanics, 2015 - Elsevier
Two important aspects of fatigue crack growth at negative stress ratios are reconsidered
within this study. First, the controlling crack tip loading parameters are discussed. As already …

Numerical determination of plastic CTOD

FV Antunes, FA Díaz, JM Vasco‐Olmo… - Fatigue & Fracture of …, 2018 - Wiley Online Library
In previous works, a da/dN versus plastic crack tip opening displacement model was
proposed to study fatigue crack growth. The plastic crack tip opening displacement, δp …

Misconception of the Use of 2D Plane Stress Solutions for Free Surfaces of Cracked Bodies and Its Significance for Full Field Measurement Techniques

T Vojtek, R Kubíček, P Pokorný… - Advanced Engineering …, 2024 - Wiley Online Library
Although 2D fracture mechanics solutions have been successfully applied, many analyses
are affected by the wrong presumption of the 2D plane stress state at the free surface …

[PDF][PDF] The effect of R ratio and temperature on fatigue crack growth threshold of power plant steels

Z Chen - 2018 - research-collection.ethz.ch
The fatigue crack propagation threshold AKth is strongly influenced by crack closure. At
elevated temperatures, metals are oxidized and AKth values are greatly enhanced by …