Bài tập SBVL1 CSU - Chương 2 (2.1 đến 2.5)

• Đăng bởi: lethithanhbinh
• Sinh viên
• 18/09/2017

2.1. The 4-mm-diameter cable BC is made of a steel with E = 200 GPa. Knowing that the maximum stress in the cable must not exceed 190 MPa and that the elongation of the cable must not exceed 6 mm, find the maximum load P that can be applied as shown.

2.2. The aluminum rod ABC (E = 10.1 x 10^6 psi), which consists of two cylindrical portions AB and BC, is to be replaced with a cylindrical steel rod DE (E = 29x10^6 psi) of the same overall length. Determine the minimum required diameter d of the steel rod if its vertical deformation is not to exceed the eformation of the aluminum rod under the same load and if the allowable stress in the steel rod is not to exceed 24 ksi.

2.3. Both portions of the rod ABC are made of an aluminum for which E = 70 GPa. Knowing that the magnitude of P is 4 kN, determine (a) the value of Q so that the deflection at A is zero, (b) the corresponding deflection of B. (Picture 2.4)

2.4. The rod ABC is made of an aluminum for which E = 70 GPa. Knowing that P 5 6 kN and Q 5 42 kN, determine the deflection of (a) point A, (b) point B. (Picture 2.4)

2.5. Members AB and BC are made of steel (E = 29x10^6 psi) with cross-sectional areas of 0.80 in^2 and 0.64 in^2, respectively. For the loading shown, determine the elongation of (a) member AB, (b) member BC.