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The symmetrical beam shown is made of a material for which the allowable stress is 40 MPa in tension and 100 MPa in compression.
a- Locate its centroid.
b- Calculate the centroidal moment of inertia that will resist the bending moment.
c- Determine the maximum bending moment that can be applied on the beam.
d- Determine the corresponding radius of curvature. Use E = 200 GPa.
An oedometer test on a clay soil gave the following results: Cc = 0.4, Ce = 0.08, OCR = 5. The thickness of the clay layer in the field is 2.6 m. The existing vertical effective stress at the mid-depth of the clay layer is 150 kPa. This vertical effe..
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For the beam and loading shown, 2) draw the shear and bending-moment diagrams, B) determine the maximum absolute values of the shear and bendnig moment.
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The 30-Mg freight car A and 15-Mg freight car B are moving toward each other with the velocities VA= 20 km/h to the right and VB= 10 km/h to the left. the spring constant on car A is k= 3MN/m.
A 2.0m-wide strip at a depth of 1 m in a stiff clay carries a wall load of 425 kN/m. The saturated unit weight of the caly is 20kN/m^3. TRiaixal tests give the following results: c'=10 kPa, phi'=28 degree, cu=105kPa, and phi_u = 0.
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