Griffin points out that because the spar cap does not span the entire width of the blade skin, bias in the cap would end abruptly at the spar-cap edge. Stresses at this discontinuity would have to ...

CEI is responsible for spar manufacture. Using the same method it employs for ... Matched metal mold sets then were modeled in SolidWorks - one set for the upper blade skin and one set for the lower ...

Production is accelerated, too. It speeds the lay-up process (placing materials in blade skin, spar cap, and sheer web molds) to 3 m/sec, 10 ft/sec, using laser- and vision-based wrinkle detection in ...