Section: Solid Mechanics | Type: NAT | Marks: 2
A simply-supported beam has a circular cross-section with a diameter of 20 mm, area of 314.2 mm2, area moment of inertia of 7854 mm4 and a length L of 4 m. A point load P =100 N acts at the center and an axial load Q = 20 kN acts through the centroidal axis as shown in the figure. The magnitude of the offset between the neutral axis and the centroidal axis, at L/2 from the left, is __________ mm (rounded off to one decimal place).
Answer: 4.9 to 5.1