Pit to crack transition and corrosion fatigue lifetime reduction estimations by means of a short crack microstructural model

JA Balbín, V Chaves, NO Larrosa - Corrosion Science, 2021 - Elsevier
A microstructural model is presented to assess pit-to-crack transition and corrosion fatigue
strength in pitted components in different environments. The model is first validated using …

[HTML][HTML] Directions of high cycle fatigue cracks emanating from circular notches studied by optical profilometry

JA Balbín, V Chaves, NO Larrosa, C Madrigal… - International Journal of …, 2022 - Elsevier
Current models for predicting the fatigue endurance of notched solids use the stresses along
a straight line, beginning at the notch root, as a simplification of the real crack propagation …

[HTML][HTML] Sizing limitations of ultrasonic array images for non-sharp defects and their impact on structural integrity assessments

SS Bhat, J Zhang, N Larrosa - Theoretical and Applied Fracture Mechanics, 2022 - Elsevier
Existing structural integrity assessment procedures typically assume flaws to be infinitely
sharp when they cannot be considered as local thinned areas. This assumption is often over …

[HTML][HTML] Influence of the ratio between specimen thickness and grain size on the fatigue and tensile properties of plain and notched aluminium plate specimens

P Lorenzino, A Navarro - International Journal of Fatigue, 2022 - Elsevier
The influence of the ratio between specimen thickness (t) and grain size (D) on the tensile
and fatigue properties of plain and notched aluminium plate specimens has been studied …

[HTML][HTML] Analysis of biaxial fatigue limit models for cases with circular notches

V Chaves, A Navarro, L Susmel, D Taylor - International Journal of Fatigue, 2022 - Elsevier
This work shows an analysis of several models of multiaxial fatigue for notches: Navarro-
Rios' model, which analyses the interaction between the crack and its associated plastic …

Grain size effects on notch sensitivity

P Lorenzino, A Navarro - International Journal of Fatigue, 2015 - Elsevier
This work presents experimental results on the fatigue behavior of cracks growing from
circular notches under axial loading conditions for a very wide range of notch size to grain …

Fatigue limit predictions at stress concentrations using FEA and microstructural fracture mechanics

V Chaves, C Madrigal, A Navarro - Theoretical and Applied Fracture …, 2017 - Elsevier
Fatigue failures generally initiate at notches or discontinuities. Many methods have been
proposed to predict fatigue limits at notches. Navarro and De los Rios developed a method …

Calculating fatigue limits of notched components of arbitrary size and shape with cracks growing in mode I

NO Larrosa, A Navarro, V Chaves - International Journal of Fatigue, 2015 - Elsevier
This paper describes the implementation of an alternating technique that uses a short crack
growth model in combination with the Finite Element Method (FEM) to calculate fatigue …

Growth of very long “short cracks” initiated at holes

P Lorenzino, A Navarro - International Journal of Fatigue, 2015 - Elsevier
The initiation and growth behavior of very long microstructurally short fatigue cracks formed
at circular holes is described. Very long here means cracks which are several millimeters or …

Fatigue limits for notches of arbitrary profile

V Chaves, A Navarro - International journal of fatigue, 2013 - Elsevier
Microestructural fracture mechanics and numerical techniques are applied to study the
fatigue limit of components with notches of arbitrary form subjected to mode I loading. The …