Bài tập SBVL1 CSU - The internal forces ^-10)

• Đăng bởi: lethithanhbinh
• Sinh viên
• 18/07/2018

1.6. The force applied at the handle of the rigid lever causes the lever to rotate clockwise about the pin B through an angle of 2°. Determine the average normal strain developed in each wire. The wires are unstretched when the lever is in the horizontal position. (P4)

1.7. The two wires are connected together at A. If the force P causes point A to be displaced horizontally 2 mm, determine the normal strain developed in each wire. (P5)

1.8. The rubber band of unstretched length 2r is forced down the frustum of the cone. Determine the average normal strain in the band as a function of z. (P6)

1.9. The wire has a diameter of 5 mm and is made from A-36 steel. If a 80-kg man is sitting on seat C, determine the elongation of wire DE. (P7)

1.10. The thin-walled tube is subjected to an axial force of 40 kN. If the tube elongates 3 mm and its circumference decreases 0.09 mm, determine the modulus of elasticity, Poisson’s ratio, and the shear modulus of the tube’s material. The material behaves elastically. (P8)