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calculate a load, shear, and moment diagrams for this drum. Presume that the moment at the beam center applies to it uniformly, and estimate both the curvature of the beam and its mid-point deflection from this value of M.

05 / 03 / 2018 Assignment

This paper circulates around the core theme of calculate a load, shear, and moment diagrams for this drum. Presume that the moment at the beam center applies to it uniformly, and estimate both the curvature of the beam and its mid-point deflection from this value of M. together with its essential aspects. It has been reviewed and purchased by the majority of students thus, this paper is rated 4.8 out of 5 points by the students. In addition to this, the price of this paper commences from £ 45. To get this paper written from the scratch, order this assignment now. 100% confidential, 100% plagiarism-free.

Figure 2 shows views of
one of the three drums of a wire-saw to make silicon wafers. The drum is 1.328mlong,
with a cylinder of aluminum with 125mmouter
diameter and 75mminner diameter. The
shell of urethane is 25mmthick and
rests on the aluminum cylinder with no gap.

Each roller looks very much like a beam. The cutting wires are
spaced 1.260mmapart, beginning and ending 4mm
from the ends of the urethane, and each carries a tension of 5N. These wiresd spread at a 60 degree
angle to pass over three rollers.

Urethane does not possess a true Young’s modulus except in the limit
of no load. Rather its elstic modulus diminishes with increasing load, and one
usually specifies a 10%, 20%, or 30 % modulus. However, at vanishingly small
strain the modulus of this urethane is 690MPa.
Using this information calculate a load, shear, and moment diagrams for this
drum. Presume that the moment at the beam center applies to it uniformly, and
estimate both the curvature of the beam and its mid-point deflection from this
value of M. Hint: remember that to calculate the value ofIfor
a composite beam you do not have to draw the transformed section, but only
multiply the contribution to I of the urethane by a ratio of elastic moduli.

Because the drum rotates there is a cyclic stress that developes as
the lower and upper sides of the drum switch places. To cut an ingot requires
feeding 500kmof wire through the web in a cycle of 1000mforward
and 900mreverse. IOn other words each cycle makes use of only 100mof
new wire. How many stress reversals are involved?


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