Unformatted text preview: e I and e II and principal directions, x ˜ 1 and x ˜ 2 . You should specify the directions as counterclockwise angles with respect to the original x 1 and x 2 coordinate system. c) Determine the direction cosines for the transformation between x 1 ,x 2 and x ˜ 1 , x ˜ 2 d) Using the appropriate tensor operation show that the original strain tensor ( e ) nm transforms to the principal strain tensor ( ˜ pq )....
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 Fall '05
 MarkDrela
 Geometry, principal strain tensor

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