Hp 50g Graphing Calculator Manual de usuario descargar pdf (Pagina 750)

The stress condition for which the shear stress, τ’

, is zero, indicated by

segment D’E’, produces the so-called principal stresses, σ

(at point D’) and

(at point E’). To obtain the principal stresses you need to rotate the

coordinate system x’-y’ by an angle

, counterclockwise, with respect to the

system x-y. In Mohr’s circle, the angle between segments AC and D’C

The stress condition for which the shear stress, τ’

, is a maximum, is given by

segment F’G’. Under such conditions both normal stresses, σ’

equal. The angle corresponding to this rotation is

. The angle between

segment AC and segment F’C in the figure represents 2

Modular programming

To develop the program that will plot Mohr’s circle given a state of stress, we

will use modular programming. Basically, this approach consists in

decomposing the program into a number of sub-programs that are created as

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Hp 50g Graphing Calculator Manual de usuario Pagina 750