Derive the Euler Buckling Load and the Euler critical buckling stress for a column fixed at one end and free at the other - cantilever column.

In: Civil Engineering

what is the difference between inelastic buckling and elastic buckling and how to apply Euler buckling formula in both cases ?

In: Civil Engineering

The maximum and minimum void ratios of a well graded sand are 0.72 and 0.46,

respectively. The specific gravity and water content is 2.68 and 11% respectively, what is the moist unit weight and degree of saturation of compaction in the field if relative density is 82%?

In: Civil Engineering

3 reservoir problem

Reservoir A: 150m

Reservoir B : 125m

Reservoir C : 75m

The pipes from each reservoir meet at junction J. The characteristics are as follows (all in meters:

La Lb Lc. Da Db Dc

500 1000. 750. 0.75 1 1

What are the friction factors for each pipe?

What is the correct elevation of J in meters ?

What are the flows in each pipe?

In: Civil Engineering

Now that you've assembled an outline of your paper, do you feel it makes a unified argument? Can you see how the parts of the essay relate to each other? If not, what do you think you can do to address the problem? Do you have any questions for your classmates? If you do think your paper is unified, what advice would you give to fellow classmates to help them achieve success? 200 to 300 characters

In: Civil Engineering

Course: Soil mechanics

Theme: Fellenius Method

There is a soil with the following characteristics: cohesion of 0.4
kg / cm2, friction angle 33 ° and dry density of 1.7 gr / cm3 and
when saturated, effective cohesion of 0.2 kg / cm2, effective
friction angle of 24 °. and a saturated density of 2.2 gr / cm3.
The slope under evaluation has a 38 ° inclination, the rocky layer
is 11 meters away, finding the stability of the slope in a dry and
saturated condition, in addition to evaluating the critical
height.

In: Civil Engineering

Solve for the forces in truss members using the method of sections

I just need an example

In: Civil Engineering

For a granular soil deposit, γ = 108.8 lb/ft3, w = 8%, Gs =
2.65.

a) Determine the void ratio, e, for this soil.

b) For this soil, it is determined that Dr = 70%. If emin = 0.57,
what is emax for this soil? c) What would be the dry unit weight of
this soil in its loosest state?

d) What would be the dry unit weight of this soil in its densest
state?

In: Civil Engineering

Pure iridium metal is one of the densest elements at 22.6 g/cm3
. Compute the settling velocities of spherical iridium particles of
the given diameters, d_{p}, in the given fluids.

(a) d_{p} = 2 μm in air (T = 293 K, P = 1 atm,
ρ_{a} = 1.2 kg/m3 , μ_{a} = 0.0181 g m^{-1}
s^{-1} )

(b) d_{p} = 100 μm in water (ρ_{w} = 1.0 g/cm3 ,
μ_{w} = 0.010 g cm^{-1} s^{-1})

In: Civil Engineering

What is the densest material on earth that is hard and
brittle?

In: Civil Engineering

A 30-kg uniform circular plate of radius r is supported by a ball-and-socket joint at point A and is at rest in the vertical xy plane when a bullet with a mass of 15g is fired with the velocity Vo = (-210m/s)k and hits the plate at point C. Knowing that r = 400 mm and h = 700 mm, determine (a) the angular velocity of the plate immediately after the bullet becomes embedded (b) the impulsive reaction at point A, assuming that the bullet becomes embedded in 1.1 ms

In: Civil Engineering

Which of the following is not a type of a warehouse picking methods

Layer pick

Crane

Piece, unit, item or broken-case pick

Full-case or carton pick

In: Civil Engineering

Select two items for which to consider value engineering, and provide at least two alternatives for each on the basis of actual items on a warehouse building?

In: Civil Engineering

Identify three (3) theorems of plastics collapse and show the relationship of those theorems with the plastics load factor

In: Civil Engineering

A monolithic reinforced concrete floor is to be composed of rectangular bays measuring 6 m x 7.5 m. The floor is to designed to carry a service live load of 5 KPa, floor finish of 1.5 KPa, and ceiling load of 1 KPa, in addition to its own weight. Design the corner floor panel slab using fc’=21 MPa, fy = 400 MPa, and concrete unit weight of 23.54 KN/m3.

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In: Civil Engineering