id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ap-624	Fajman, P.	Membrane Triangles with Drilling Degrees of Freedom	2004	5	.pdf	application/pdf	2808	136	72	Components of the engineering strain � � { , , }� � �x y xy T are obtained applying standard transformation as � � � � �ij ij ij ij ij� �{cos , sin , sin cos }2 2 �, and in matrix notation � � � � * *� � � ��A A 1 . 2: Extension from pure rotation �1 � 1 � � 1 1 21 21 1 13 13 1 21 2 1 2 21 u r s l L L ij ij ij i ( , ) � � � � � � �n t n t n t j ijl L L� �1 13 3 1 2 13n t , (3) where i � 2, 3, 1 and j � 1, 2, 3, and { } { , } {cos , sin }n ij xij yij nij nijn n� � � � is the outward unit normal vector of the element side ij, { } { , } {cos , sin }t ij xij yij nij nijt t� � � � is the unit vector of the element side ij (Fig. 4).	cache/ap-624.pdf	txt/ap-624.txt