Traction forces of 5000 N are applied at both ends of a bar of L = 5 m in length with R = 35 cm and a Young modulus of 125 × 108 N / m 2. As a consequence, a bar undergoes a stretching of Choose one: a) ΔL = 1.34 m b) ΔL = 0.520 mm c) ΔL = 0.00945 mm d) ΔL = 0.00472 mm e) ΔL = 0.132 mm
Traction forces of 5000 N are applied at both ends of a bar of L =...
shown in Figure 2. Two circular disks A and B are welded to the ends of both bars. The disks lie in planes disks A and B subjecting the bars to torsion. If the allowable maximum shear stress is 35 MPa and the allowable rate of twist is 3°/m for both bars, determine the smallest outer diameter (D, and Di) of both bars. The shear modulus of elasticity is 39 GPa to the axes of the bars. Forces 15 kN...
1. Consider a bar under tension. The bar has length L, rectangular cross-section of sides b and h, Young's modulus E, density p, and applied tensile force P. a) If all parameters are fixed except for h, find the value of h that minimizes the mass of the bar under stress, elongation, and stiffness constraints. Assume safety factors oo, Os, and Ok and failure values o*, 8*, and k* b) Also find the minimum mass of the bar m under...