Πλοήγηση ανά Θέμα "Cracks"
Αποτελέσματα 21-27 από 27
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Numerical Simulation of Damage on Cementitious Sprayed Fire-Resistive Materials Applied on Steel Plates
(2019)Cementitious Sprayed Fire Resistive Materials (SFRMs) are extensively employed for the fire protection of steel structural members due to their cost-effective fire proofing capabilities. They are susceptible, however, to ... -
Reduced service life of concrete sleepers due to inadequate design
(2010)During the 1980's, the twin-block concrete sleepers/ties -designed and laid in railway lines with maximum operational speed of 200 km/h in France- which were laid on a track with maximum operational speed of 140 km/h in ... -
Rolling contact fatigue cracking in rails subjected to in-service loading
(2016)Rolling contact fatigue (RCF) is one of the most important failure mechanisms in rails with significant cost- and safety-related implications on the operation of railway systems. In this work, a metallurgical analysis of ... -
Rolling contact fatigue of rails
(2013)Rolling contact fatigue (RCF) has been of increasing concern in the recent years regarding the safe operation of high-speed railway track with high traffic intensity. The present paper summarizes the results of an on-going ... -
Seismic strength evaluation of reinforced concrete shear walls with cracks, using the notion of fractal geometry
(2011)Shear walls play an important role to the seismic strength of modern seismic resistant structures. They are designed so that they have significant bending and shear strengths and ductility. However, existing structures ... -
The use of strain attenuating tie pads and its influence on the rail seat load in heavy-haul railroads
(2010)In Greece, during the 1980's, 60% of the twin-block concrete ties designed for 200 km/h, which were laid on a track with maximum operational speed of 140 km/h, presented serious cracks. The existing theories, in the French, ... -
A von Karman plate analogue for solving anti-plane problems in couple stress and dipolar gradient elasticity
(2018)The purpose of the present work is to present a direct analogy regarding the formulation and solution of anti-plane problems in the context of couple stress and dipolar gradient elasticity and the von Karman plate framework. ...