(b) A linear elastic material is subjected to a state of plane stress. The stress state...
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(b) A linear elastic material is subjected to a state of plane stress. The stress state at a certain point in the material is shown in Figure Qib. (i) Determine the magnitude of the principal stresses and maximum shear [S marks] stress Determine the magnitude of the direct stress acting on the plane of maximum shear. (ii) 3 marks) (i) Determine the magnitude of the normal and shear stresses acting on a plane GG inclined at 30 to the y-axis as shown in Figure QIb. [4 marks] The loading on the linear elastic material is increased so that each of the stress components reach a value of A times the stress values given in Figure Qlb. Find the maximum value i to ensure that neither the new maximum principal stress nor the new maximum shear stress in the material exceed 100 MPa (iv) 3 marks) 40 MPa 25 MPa 30 60 MPa Eigure Olh Ouestinn (b)l (b) A linear elastic material is subjected to a state of plane stress. The stress state at a certain point in the material is shown in Figure Qib. (i) Determine the magnitude of the principal stresses and maximum shear [S marks] stress Determine the magnitude of the direct stress acting on the plane of maximum shear. (ii) 3 marks) (i) Determine the magnitude of the normal and shear stresses acting on a plane GG inclined at 30 to the y-axis as shown in Figure QIb. [4 marks] The loading on the linear elastic material is increased so that each of the stress components reach a value of A times the stress values given in Figure Qlb. Find the maximum value i to ensure that neither the new maximum principal stress nor the new maximum shear stress in the material exceed 100 MPa (iv) 3 marks) 40 MPa 25 MPa 30 60 MPa Eigure Olh Ouestinn (b)l
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