Finite element stress analysis of cables

This paper discusses the CableCAD(R) finite element code designed specifically for analysis of cables. The new code provides a graphical user interface that simplifies cable model creation and parametric design iterations. To assess cable performance, the program automatically generates a meshed finite element model of its constituent components. Arbitrarily complex geometries and material nonlinearities can be represented by the model. Both asymmetrical geometry and loads around the cable axis can be modeled. Single, double and triple helical structures can be handled. Thus, the program's usefulness can be extended to include rope and flexible pipe. Program results include cross-section deformation and stress contour plots as well as numerical tabular listings of cable behavior such as cable axial strain, torque or free-end rotation, and diametrical reduction. Tension, twist, frictional bending, clamp and thermal loads can be applied to the model in any combination. This paper summarizes the development of the finite element model, briefly describes the operation of the program, and presents examples of finite element analyses of as-built cables.