Consider the undeformation circular cross-section of a bar with diameter d , a side view of which
Question:
Consider the undeformation circular cross-section of a bar with diameter d, a side view of which is shown in the figure below.
The diameter of the bar is d=170 mm. A bending moment is applied that causes the neutral axis to become concave up. What is the normal strain at a distance h=40 mm from the bottom of the bar if the radius of curvature is measured to be ?=4.1 m?
?= __________ mm/mm
Part B -
Maximum Normal Strain
A different cylindrical bar of diameter d=28.8 mm is subjected to a moment, and the strain at a distance y=8.5 mm from the neutral axis is found to be ?6.296�10?4 mm/mm. What is the maximum compressive normal strain in the bar?
Express your answer to three significant figures.
| ?max= | ________ mm/mm |
Part C - Inner and Outer Lengths of a Deformed Rod
A third cylindrical rod of diameter d=2.5 in. is subjected to a moment resulting in the rod's bending with a radius of curvature of ?=92 in. If the rod was initially L0=38 in. long, what are the lengths of the inner (closest to the center of curvature) and outer (away from the center of curvature) edges of the curved rod?
Express your answers, separated by a comma, to three significant figures.
Linner,final=, Louter,final= __________ in., in.
