“…(A.2)In finite-strain formulation, the elementary rotation matrices shown in Eq. (3.41 are given byX f (1,1) = 1, X f ([2,3,4,5],[2,3,4,5]) (α) = r pf (α), X f ([6,8],[6,8]) (α) = X f ([7,9],[7,9]) (α) = r vf (α); (A.3) Y f (2,2) = 1, X f ([1,3,6,7],[1,3,6,7]) (β) = r pf (−β), Y f ([…”