A thin rectangular plate in is biaxial stress subjected to stresses (x and (y, as shown in part (a) of the figure on the next page. The width and height of the plate are b = 8.0 in. and h = 4.0 in., respectively. Measurements show that the normal strains in the and directions are (x = 195 ( 10-6 and (y = - 125 ( 10-6, respectively.
With reference to part (b) of the figure, which shows a two dimensional view of the plate, determine the following quantities: (a) the increase (d in the length of diagonal Od; (b) the change (( in the angle ( between diagonal Od and the axis; and (c) the change (c in the angle C between diagonal Od and the y axis?

Transcribed Image Text:

(a)