Wind whip prevention is an important concern for environmentally exposed geosynthetics. In addition to developing design strategies to limit the degradation of geosynthetics in high winds and understanding the different factors affecting geosynthetic performance (geometry, formulation and structure), quantifying and studying the wind-whip phenomenon is important to better understand the durability of geosynthetic materials. This standard will serve as a vital indicator of fatigue performance for long-term wind exposure, thus aiding an engineer in the geosynthetic selection process. The requirements of the wind tunnel used in this experiment are as follows and can be seen in Figures 2 and 3: robust construction, ability to produce a laminar (nonturbulent) flow profile at a specified velocity, and ability to sufficiently dampen vibrations from both the motor and fluttering test specimen. For this method, a subsonic wind tunnel will be utilized, which is able to produce wind speeds between 9 and 150 mph (15 and 240 km/h), which is far below HDPE GEOWEB ® Strength & Flexibility Perfected. Solve the most challenging soil stability and erosion control problems with the world's most proven 3D geocell system. * Unpaved Access Roads * Steep Slopes | Channels * Vegetated Retaining Walls FREE Project Evaluation PRESTO 800-548-3424 or 920-738-1328 * www.prestogeo.com AP-8571 www.GeosyntheticsMagazine.com 1020GS_p36-cv4.indd 43 43 9/22/20 1:45 AMhttp://www.prestogeo.com http://www.GeosyntheticsMagazine.com