Transverse strength of railway tracks: part 3. Multiple scenarios test field
Journal Title: Frattura ed Integrità Strutturale - Year 2014, Vol 8, Issue 30
Abstract
In the present paper the design and construction choices of a test field for the ballast lateral resistance measurement, in order to produce data useful for the development of a numerical model able to simulate the service critical conditions of a continuous welded rail track, are described. Some construction details described herein allow to better understand the methodological approach followed in the design of experiments, the tests management philosophy as well as of the accuracy achieved in their implementation.
Authors and Affiliations
Antonio De Iorio, Marzio Grasso, Francesco Penta, Giovanni Pucillo, Vincenzo Rosiello, Stefano Lisi, Mario Testa
Investigation on parametric representation of proportional and nonproportional multiaxial fatigue responses
This study aims to investigate fatigue damage resulting from multiaxial fatigue, proportional and/or nonproportional, loading by analyzing stresses and strains over a full domain around a representative stress-str...
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...
Crack growth threshold under hold time conditions in DA Inconel 718 – A transition in the crack growth mechanism
Aeroengine manufacturers have to demonstrate that critical components such as turbine disks, made of DA Inconel 718, meet the certification requirements in term of fatigue crack growth. In order to be more re...
Effect of inhomogeneous distribution of non-metallic inclusions on crack path deflection in G42CrMo4 steel at different loading rates
An inhomogeneous distribution of non-metallic inclusions can result from the steel casting process. The aim of the present study was to investigate the damaging effect of an inhomogeneous distribution of nonmetall...
Sub-critical cohesive crack propagation with hydro-mechanical coupling and friction
Looking at the long-time behaviour of a dam, it is necessary to assume that the water can penetrate a possible crack washing away some components of the concrete. This type of corrosion reduces the tensile st...