A rectangular steel bar, with 8" x 0.75" cross-sectional dimensions, has equal and opposite moments applied to its ends.

a. Determine the yield moment assuming Fy = 50 ksi.
b. For the moment calculated in part a, calculate the strain in the cross-section 2 inches down from the top of the rectangle.
c. Determine the plastic moment assuming Fy = 50 ksi.

Part a: The yield moment is 400 k.in.

Part b: The strain is

Part c: The plastic moment is 600 ksi.

Explanation:

Part a:

As per bending equation

Here

Here

The yield moment is 400 k.in.

Part b:

The strain is given as

The stress at the station 2" down from the top is estimated by ratio of triangles as

Now the steel has the elastic modulus of E=29000 ksi

So the strain is

Part c:

For a rectangular shape the shape factor is given as 1.5.

Now the plastic moment is given as

The plastic moment is 600 ksi.

answer:

explanation:

assault rifle is a rapid-fire, magazine-fed rifle designed for military use. it is a shoulder-fired weapon that allows the shooter to select between semi-automatic (requiring you pull the trigger for each shot), fully automatic (hold the trigger and the gun continuously fires) or three-shot-burst modes.

answer:

the army does care about its soilders sir i think yout getting off on the wrong foot sir you need to respect our country were keeping the peole that want to d harm towards you out. so dont go saying we don't care cause we do