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Steel and Composite Structures
  Volume 18, Number 3, March 2015 , pages 775-791
DOI: https://doi.org/10.12989/scs.2015.18.3.775
 


An investigation into the mechanics of fiber reinforced composite disk springs
Peng Yang, Stacy Van Dyke and Rani F. Elhajjar

 
Abstract
    An analytical and experimental investigation is performed into the mechanical behavior of carbon-fiber/epoxy woven coned annular disk springs. An analytical approach is presented for predicting the deformation behavior of disk springs of specially orthotropic laminates with arbitrary geometric parameters. In addition, an analytical methodology is proposed for obtaining the deformation behavior of a stack of disk springs. The methodology is capable of accounting for parallel and series arrangements for uniform and irregular stacks. Element and assembly experimental results are used to validate the proposed method showing how to achieve flexible spring rates at various deflections ranges. This manuscript also provides guidelines for design and validation of disk spring assemblies.
 
Key Words
    nonlinear disk springs; mechanical behavior; manufacturing; specially orthotropic materials; structural behavior
 
Address
Department of Civil Engineering and Mechanics, College of Engineering and Applied Science, University of Wisconsin-Milwaukee, 3200 N Cramer Street, Milwaukee, Wisconsin, 53211 USA.
 

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