Question

Part B Calculate the load II Review A square steel bar has a length of 2.2 ft and a 1.5 in by 1.5 in cross section and is subjected to axial compression. Under load, the thickness becomes 1.50032 in . If the modulus of elasticity is E = 2.9x 104 ksi and Poisson's ratio is v = 0.31; what is the magnitude of the load that was applied to the bar? Learning Goal To use Poisson's ratio and Hooke's law to examine the relationship between axial and lateral deformation by considering the deformation of an axially loaded bar Express your answer with appropriate units to three significant figures. View Available Hint(s) When a force is applied to an object, it produces a delormation along the axis of the appied force. The object wil also deform along axes perpendicular to the applied force. As long as the response of the material remains elastic, the relationship between the strains in the difterent directions can be described by a material property called Poisson's ratio, L. F- 8.90 kips For the common case of a uniaxial load, the longitudinal (or axial) strain ong is related to the lateral strain Cat by v =--. The Clo㎎ Submit negative sign indicates that axial stretching leads to lateral contraction while allowing Poisson's ratio to be a positive number X Incorrect; Try Again; 4 attempts remaining Part C Maximum load A sider with a square hole is mounted on the bar described in part B (Figure 1). The largest load the bar ever carries is 90 kip. What is the minimum side length of the squaro hole so that it will not bind on the bar? Express your answer with appropriate units to six significant figures View Available Hint(s) Figure 1 of 1 Vlue Units Submit st Next

Answer 1