Fatigue crack growth under remote and local compression – a state-of-the-art review
Journal Title: Frattura ed Integrità Strutturale - Year 2016, Vol 10, Issue 35
Abstract
There is an ever increasing need for accurate understanding of the fatigue crack growth behaviour in major engineering materials and components. With the move towards more complex, probabilistic assessments, the traditional ‘safe’ or conservative approach for prediction of fatigue crack growth rate may no longer be attractive. Current codes and standards tend to be ambiguous about the treatment of compressive stress cycles: on the one hand code guidance on fatigue crack initiation may be non-conservative, while assessment of crack propagation may be inconsistently conservative. Where codes are non-conservative they could lead to dangerous assessments. The current paper provides a critical review of state-of-the-art in literature and a study of current code implications.
Authors and Affiliations
A. Chahardehi
Keywords
Related Articles
- EP ID EP112149
- DOI 10.3221/IGF-ESIS.35.05
- Views 82
- Downloads 0
A review of thermographic techniques for damage investigation in composites
The aim of this work is a review of scientific results in the literature, related to the application of thermographic techniques to composite materials. Thermography is the analysis of the surface temperature of a...
Multiaxial fatigue of in-service aluminium longerons for helicopter rotor-blades
Fatigue cracking of longerons manufactured from Al-alloy AVT-1 for helicopter in-service rotor-blades was considered and crack growth period and equivalent of tensile stress for different blade sections were estim...
Multi-scale crack closure measurements with digital image correlation on Haynes 230
An experimental campaign was developed to study fatigue crack growth in Haynes 230, a Ni-based superalloy. The effects of crack closure were investigated with digital image correlation, by applying two different...
A new method for the experimental study of fatigue behaviour of thermoplastic materials
Nowadays most industrial realities undergo a strong push to improve cost-effectiveness, productivity and quality of manufactured products. In particular we focussed our attention in the area of design of plastic structur...
On the use of the Theory of Critical Distances to estimate the dynamic strength of notched 6063-T5 aluminium alloy
In this paper the so-called Theory of Critical Distances is reformulated to make it suitable for estimating the strength of notched metals subjected to dynamic loading. The TCD takes as its starting point the ass...