HW_3_Direct_stress_strain

HW_3_Direct_stress_strain - max and the major principal...

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Fall 2009: Aerospace Structures I Date Assigned: Wednesday, September 9, 2009 Date Due: Wednesday, September 16, 2009 HW #3 1.- Listed below are varying combinations of stresses acting at a point and referred to axes x and y in an elastic material. Using Mohr’s circle of stresses, determine the principal stresses at the point and their directions for each combination. 2.- A shear stress τ xy acts in a two-dimensional field in which the maximum allowable shear stress is denoted by
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Unformatted text preview: max and the major principal stress by I . Derive, using the geometry of Mohrs circle of stress, expressions for the maximum values of direct stress which may be applied to the x and y planes in terms of the three parameters given above. Hint: x = OP 1 = OB BC + CP 1 3.- The direct strains in the directions, a, b, c are -0.002, -0.002, and +0.002, respectively. If I and II denote principal directions find I , II , and ....
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HW_3_Direct_stress_strain - max and the major principal...

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