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16 QUESTION 3: At Point A on a concrete wall, the state of stress duc to the indicated loading condition is shown below on the right. Using the Mohrs Circle method, determine the following stresses and illustrate the orientation and direction of the stresses on a sketch: a) The principal normal stresses; and b) The normal and shear stresses on a plane defined by Line b-b. Note: The stress transformation equations, rather than Mohrs circle, can be used, however there will be a 5 mark penalty assigned for using this method. 7.5 MPa 0 MPa 35°
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才5MPa. z need to Calaiate Cetve 4 the cicla and -the vadius tha civcle 0-1.5-1 = -3.35 Mpa - 4-80 2 Mpa pstrcpal stresses on0 11-80% Np.. lbb he lane be elemeut A vehave to find od From the graph ơrbb -2.65 mpa Shear stes on He element can be ac go

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