As shown in Figure 4, a cuboid block with four square columns at the bottom corners...

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As shown in Figure 4, a cuboid block with four square columns at the bottom corners sustains a uniformly distributed force of 80 kN on the top surface, assuming the material of block is isotropic and has bi-linear normal and shear stress-strain curves as shown, neglecting the gravity. 0 9 cm 120 MPa 0.015 M 20 cm 80 kN 20 cm 3 cm 135 MPa 0.04 & 4 cm 4 cm 65 MPa 0.02 100 MPa 0.04 Y Figure 4 (a) Determine the normal modulus of resilience and the shear modulus of toughness of the material. (8 marks) (b) Determine the Poisson's ratio of the material. (5 marks) (c) Justify whether the block can safely sustain the loading or not, taking the factor of safety as 3. (12 marks) As shown in Figure 4, a cuboid block with four square columns at the bottom corners sustains a uniformly distributed force of 80 kN on the top surface, assuming the material of block is isotropic and has bi-linear normal and shear stress-strain curves as shown, neglecting the gravity. 0 9 cm 120 MPa 0.015 M 20 cm 80 kN 20 cm 3 cm 135 MPa 0.04 & 4 cm 4 cm 65 MPa 0.02 100 MPa 0.04 Y Figure 4 (a) Determine the normal modulus of resilience and the shear modulus of toughness of the material. (8 marks) (b) Determine the Poisson's ratio of the material. (5 marks) (c) Justify whether the block can safely sustain the loading or not, taking the factor of safety as 3. (12 marks)

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The image provides a diagram of a cuboid block with dimensions and loading conditions as well as stressstrain curves for both normal and shear stresses To answer the questions lets analyze each part s... View the full answer