PT - JOURNAL ARTICLE AU - Trebuňa, František AU - Hagara, Martin AU - Huňady, Róbert TI - Strain Fields Identification of Chosen Cycling Helmets Types by Their Impact Loading DP - 2012 Oct 31 TA - Acta Mechanica Slovaca PG - 22--30 VI - 16 IP - 2 AID - 10.21496/ams.2012.014 IS - 13352393 AB - The use of a modern digital image correlation method to investigation of drop tests of two chosen cycling helmets types is described in this contribution. The first type - Arcore T-16 represents the helmets with more rounded uncomplicated surface and the second one - Longus Entry has flatter but more complicated contour. The investigation was directed to determination of helmets deformation and strain fields during their impact to a barrier. A high-speed system Q-450 Dantec Dynamics with cameras SpeedSense9070 Phantom was used to shoot this short time interval.