By E.A. Easterling
Practically all activities have benefited in a few an important method via the advent of man-made fabrics. complicated fabrics in activities gear is a readable creation to those new fabrics. The ebook examines the function performed by means of complicated fabrics within the layout, functionality, visual appeal and security points of varied apparatus and shows most likely destiny developments.
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Extra info for Advanced Materials for Sports Equipment: How Advanced Materials Help Optimize Sporting Performance and Make Sport Safer
F ( Bending of rods and tubes B ß LI "! t}~ C Buckling of slender column or tube t I l_i j t~ ~Ii t Strength E Oy p P G1I2 oy2l3 P p G1/2 Oy2l3 P P E1/2 oi/3 P P E1/2 -p F '---... 14 Examples of design criteria for various types of components and loading conditions. E refers to elastic modulus; (! refers to density of material; Gy refers to yield strength; F refers to applied load; r is radius, t is thickness, I is length, W refers to width of plate and T is the torsional force. C_A_S_E_S_T_U_D_I_E_S_I_N_M __A_T_E_R_IA __ LS__S_E_LE_C_T_I_O_N________~I L -________ materials for this application.
12 Measurements of 'energy return' of various sports shoes (Le. percentage of work of deformation got out relative to that put in) using the method shown. The general conclusion is that there is relatively little difference between shoes. After R. M. Alexander and M. , New Scientist, 15 July. THE OUTSOLE L -_ __ _ _ __ __ __ __ _ _ __ __ __ __ __ __ __ _ _ __ __ __ __ __ _ _ __ _ II ~ designs claim that energy-return systems are being developed at the expense of safety and stability, and with scant thought of cost to the consumer.
11). These inlets are in fact not filled with air but with a pressurized gas giving lightness and cushioning, the whole being encapsulated in PU. Additionally, the midsole may be split into two parts: a high-density PU around the heel , with a lower density in the rest of the sole. Hi-Tec's ABC (Air Ball Concept) uses a similar technique. 11 Cross-section from a 'Nike Air' shoe. 12 Measurements of 'energy return' of various sports shoes (Le. percentage of work of deformation got out relative to that put in) using the method shown.