number of cells, the pressure can be varied throughout the length of the tube and thereby
optimize the design (Sakamoto and Natori, 2001).
1.3.5 Selected Approach
The modified traditional beam theory will be used in conjunction with a nonlinear
finite element model for future analysis. The finite element approach solves complex
geometries and provides a visualization of deformed behavior. The modified traditional
beam theory will be used to verify the behavior of a simple finite element model.
Following verification, the finite element approach will then be used to model complex
cage geometries and interactions. Further theoretical development of the modified
traditional beam theory is presented in Chapter 2 and the finite element approach is
described in Chapter 4.