Static and Dynamic Testing of Composite Structures in the Railway Industry
نویسنده
چکیده
This paper presents an overview of manufacturing, static/dynamic test and validation work carried out on composite rail vehicle structures. Two case studies, detailing the development and experimental validation of a composite bodied people mover and a foam core composite roof for a regional train are presented, demonstrating new and novel applications of composite materials within the rail industry. Particular reference is made to the static and dynamic performance of these structures. It is concluded that composite materials offer a viable alternative to traditional steel and aluminium components on a wide range of rail vehicles, in terms of both performance and cost.
منابع مشابه
Static and Dynamic Analyses of Micropiles to Reinforce the High Railway Embankments on Loose Beds
Construction of railway embankments on loose beds without using any methods of soil improvement (e.g. stone columns in silt and clay beds, deep soil mixing method, jet grouting and also using micropiles individually or in groups form) leads to reduction of embankment slope gradient, which significantly increases the volume of soil operation. Generally, micropile as a reinforcing element with t...
متن کاملA Numerical Study on Geofoam Application in the Settlement Reduction of Railway Embankments
Construction of railway track embankment over a soft subgrade will bring the necessity of using soil improvement methods for bearing capacity and settlement criteria satisfaction. As a practical improvement method, railway embankment filled with geofoam blocks is studied in this paper. First; a bilinear stress-strain model developed in FLAC2D to simulate geofoam embankment behavioral model. Sec...
متن کاملSensitivity Analysis of Vibration Response of Railway Structures to Velocity of Moving Load and Various Depth of Elastic Foundation
Railway structures are one of the most important structures in transportation. So the lack of precise study of their dynamic behavior leads to irreparable damages. The significant factors contributing to the accurate analysis of the dynamic behavior of railways are the type of load and foundation used in it. In this study, an Euler-Bernoulli beam subjected to a moving load on a finite depth fou...
متن کاملDynamic Characteristics of Joined Steel and Carbon Fiber-Reinforced Plastic Tubes: Experimental and Numerical Investigation
The fundamental frequencies and mode shapes of steel and carbon fiber–reinforced plastic (CFRP) cylindrical shells with steel inserts were investigated using finite element analysis and modal testing. The free-free boundary condition was tested with modal testing using the roving hammer method and verified by finite element analysis using ABAQUS. The results show good agreement between the test...
متن کاملDynamic stress concentration in a hybrid composite laminate subjected to a sudden internal break
In this work, transient dynamic stress concentration in a hybrid composite laminate subjected to a sudden internal crack is examined. It is assumed that all fibers lie in one direction and the applied load acts along direction of fibers. Two types arrangements are considered for the fiber; square and hexagonal arrangement. Using shear lag model, equilibrium equations are deduced and upon proper...
متن کامل