When doing your design you will at some point wish to get an idea of how stiff/rigid will your board/ski be. Here are some tools that will aid you in estimation stiffness or flexural rigidity. The tools are primitive and simple but can give you a good insight into how two designs will be compared to each other, or how your ski/board stiffness will change with varying parameters, such as thickness, width or composite material parameters.
Excel ski / board stiffness estimate
This is a simple excel sheet that is found some years ago on a forum and has been useful for simple and quick estimate of a ski/board stiffness for different setups,
modify only the yellow fields!
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