Crack initiation at V-notch tip subjected to in-plane mixed mode loading: An application of the fictitious notch rounding concept
Journal Title: Frattura ed Integrità Strutturale - Year 2015, Vol 9, Issue 34
Abstract
The fictitious notch rounding concept is applied for the first time to V-notches with root hole subjected to in-plane mixed mode loading. Out-of-bisector crack propagation is taken into account. The fictitious notch radius is determined as a function of the real notch radius the microstructural support length and the notch opening angle. Due to the complexity of the problem, a method based on the simple normal stress failure criterion has been used. It is combined with the maximum tangential stress criterion to determine the crack propagation angle. An analytical method based on Neuber's procedure has been developed. The method provides the values of the microstructural support factor as a function of the mode ratio and the notch opening angle. The support factor is considered to be independent of the microstructural support length. Finally, for comparison, the support factor is determined on a purely numerical basis by iterative analysis of FE models.
Authors and Affiliations
F. Berto
Keywords
Related Articles
- EP ID EP128000
- DOI 10.3221/IGF-ESIS.34.18
- Views 64
- Downloads 0
Contact between the components of a knee prosthesis: numerical and experimental study
The aim of this work is the analysis of the contact area in a knee prosthesis using two different approaches. In particular, the interface between the femoral component and the polyethylene insert has been studied...
Elastic wave propagation and stop-band generation in stronglydamaged solids
In this work, we study the propagation of elastic waves in elongated solids with an array of equallyspaceddeep transverse cracks, focusing in particular on the determination of stop-bands. We consider solidswith di...
Static assessment of brittle/ductile notched materials: an engineering approach based on the Theory of Critical Distances
Engineering components often contain notches, keyways or other stress concentration features. These features raise the stress state in the vicinity of their apex which can lead to unexpected failure of the compone...
A data fusion based approach for damagedetection in linear systems
The aim of the present paper is to propose innovative approaches able to improve the capability ofclassical damage indicators in detecting the damage position in linear systems. In particular, starting fromclassica...
Transverse strength of railway tracks: part 1. Planning and experimental setup
Several studies have been carried out until now by various Research Agencies and Railway Administrations to quantify the effects of the track-bed geometrical characteristics on the transverse strength of the trac...