The suggestion of the standardized finite element model through the experimental verifications of various railway vehicle structures made of sandwich composites

• Published in: Journal of mechanical science and technology Vol. 25; no. 5; pp. 1185 - 1192
• Main Authors: Ko, Hee-Young, Shin, Kwang-Bok, Hahn, Sung-Ho
• Format: Journal Article
• Language: English
• Published: Heidelberg Korean Society of Mechanical Engineers 01.05.2011; Springer Nature B.V; 대한기계학회
• Subjects: Control; Dynamical Systems; Engineering; Exact sciences and technology; Finite element method; Fundamental areas of phenomenology (including applications); Industrial and Production Engineering; Inelasticity (thermoplasticity, viscoplasticity...); Mathematical analysis; Mathematical models; Mechanical Engineering; Physics; Railroads; Railway engineering; Railways; Shells; Solid mechanics; Structural and continuum mechanics; Vehicles; Vibration; 기계공학; Standard finite element model; Railway vehicle; Structural test; Sandwich composite; Motor car; Fibre reinforced metal; Constraint; Sandwich structure; Rail vehicle; Car body; Transverse load; Vertical load; Experimental study; Modeling; Natural frequency; Finite element method; Inelasticity; Honeycomb structure; Crush; Mechanical shock
• ISSN: 1738-494X; 1976-3824
• DOI: 10.1007/s12206-011-0228-z

In this study, a standardized finite element model for the carbody structures of various railway vehicles made of sandwich composites was suggested. The standardized finite element model for composite carbody structures was introduced and proposed by comparing the results of real structural tests under vertical, compressive, twisting load and natural frequency tests of various railway vehicles. The results showed that the quadratic shell element was suitable to model the reinforced metal frame used to improve the flexural stiffness of sandwich panels compared to beam elements, and layered shells and solid elements were recommended to model the skin and honeycomb core of sandwich panels compared to sandwich shell elements. Also, the proposed standard finite element model has the merit of being applied to crashworthiness analysis just by minor modifications, such as contact conditions and constraint equations.