Q: Find total stress (o), pore-water pressure (u) and effective stress (o') at B for the following cases: (a) Total heads at A and B are 15 cm and 15 cm respectively. (b) Total heads at A and B are 15 cm and 18 cm respectively. (c) Total heads at A and B are 15 cm and 10 cm respectively. (Assume Ysat = 18 kN/m³, and yw = 10 kN/m³) (a) Valve (closed) 5m (b) Valve (open) Outflow Inflow 5m (c)

Determine the normal stress in a ball, which has an outside diameter of 190 mm and a wall thickness of 3.1 mm, when the ball is inflated to a gage pressure of 77 kPa. Answer: 0 = i MPa

4. Find the stress (in MPa) in the red cylinder below. 5000 kg D₁ = 0.50m D₂ = 0.75m

ELABORATE Try solving the following problem: Practice Problem: Refer to Figure 3.8. Determine the vertical stress increaseÃO₂, at point A with the following values: q = 750 lb/ft; x = 8 ft; z = 3 ft. !! Line load = q x

answer the following

A thin cylinder have inner radius 235 mm and thickness 6 mm subjected to an internal pressure of 5 MPa. Determine average circumferential stress?

7 MPa Question 1 Figure Q.1 shows a timber block subjected to normal horizontal pressure of 3 MPa and normal vertical pressure of 7 MPa. Determine : 60° 3 МРа A (a) Normal stress and shear stress on an element A in the timber block (b) The maximum and minimum (absolute) shear stress in the timber block. 7 MPa

A compressive load P=60kN is applied to the surface of a soil. o Find the vertical compressive stress at a point 2m below the surface at a distance of 1m away from the line of action of the force o Plot the distribution of vertical compressive stress on the plane 2m (i.e. for z = 2m) below the surface of the soil, for various radial distances up to 2m from the line of action of the force (i.e. r =, 0,……,2) o Plot the distribution of the vertical compressive stresses on various horizontal planes (i.e. for various values of z=0.5, 1, ……, 3) along the vertical axis (i.e. at r=0

3. At a different location in the Chesapeake, the same u-=4.4 cm/s and z,=3.1 cm were measured. At this new location, at 1 m above the bed, the Reynolds stress was measured to be u w' =-17.8 cm²/s² and the flux Richardson number was 0.23. First compute the velocity gradient at 1 meter above the bed using the logarithmic distribution and then determine the buoyancy flux ( w'p') at this location. Is the water column stably stratified?

Question 03: Determine the normal stress and draw the stress diagram of the beam at a point 1 m from the left support. 1.0m 20KN/M D ↓ ↓ ↓ ↓ J J 2.0m 1=225x106mm² Bean depth = z 300mm