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ID: 1858748 • Letter: P

Question

Please find figure in this Link

http://www.freeimagehosting.net/c2dq5

I will award 5 stars as soon as solution is posted.

The question that is with the figure is

This question requires the analysis of data presented on the

link provided. For this demonstration, an unequal angle is clamped

at one end and is subjected to a state of bending. Data on the

section properties is provided on the link provided. Analysis of

the images of the end of the beam is to be performed for comparison

with the theoretical results.

In beam bending, the neutral axis defines the orientation of the

plane along which direct (normal) strains (and hence, stresses) are

zero. The magnitude of the direct strain increases in direct

proportion to the distance from the neutral axis and hence the beam

deflects in a direction perpendicular to the orientation of the

neutral axis.

Required analysis tasks:

(a) Produce a sketch specifying the angle of the moment vector

relative to the PCAs for the given orientation of the section and

the loading.

(b) Using the specified second moments of area and the PCA

orientations, determine the expected angle of the neutral axis

relative to the horizontal plane and show the neutral axis on a

correctly oriented sketch of the section.

of the expected maximum compressive and tensile stresses within the

section.

(d) Analyse the photographs and tabulate values of the vertical

and horizontal deflection of the end of the beam for each of the 4

loading cases. Include a description of the approach you adopted

for the analysis of the images

(e) Based on your results in part (d), identify an

experimentally-derived orientation for the neutral axis and compare

this result with that obtained in part (b). Discuss possible

sources for the differences between the two results.

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