| Sarah M. Brennan | Projects | Resume | Fun Stuff |
                             
Sarah M. Brennan, Ph.D.
Structures and Composites Lab
Department of Aeronautics & Astronautics
Stanford University


Advisors:
George S. Springer, Stanford University
Laszlo P. Kollar, Budapest University of Technology and Economics



Abstract
Models were developed for calculating the mechanical characteristics and the on-snow performance of snowboards. The snowboards are constructed of layers of materials which may include wood, foam, honeycomb, fiber reinforced composites, and polymeric materials.  The models pertaining to the mechanical characteristics provide the bending and torsional stiffnesses, the flex, and the twist. A computer code “Snowboard-MECH” was written which yields numerical values of these characteristics. The model pertaining to the on-snow performance simulates the travel of a snowboarder of given height, weight, and skill level down an S-shaped course. A computer code “Snowboard-TURN” was written in support of this model. This code calculates the time it takes the snowboarder to complete the course. The two computer codes were verified by comparing the outputs of these codes to laboratory data and to data generated by a snowboarder completing a prescribed S-shaped course. The results generated by the models and the data are in agreement, lending confidence to the models and the corresponding computer codes. A procedure is described by which the computer codes developed in this study can be utilized in the design of snowboards.

Approach Testing Results



alpine_meadows
All snow tests were performed at Alpine Meadows Ski Resort, Lake Tahoe