Three one-meter-long bars with cross-section area A = 1cm2 support a rigid plate of weight W. For steel, E, 200 GPa and S, 400 MPa. Determine the maximum weight the bars can support for three cases:...
Problem 1 Three one-meter-long bars with cross-section area A1cm2 support a rigid plate of weight I. For steel, E, - 200 GPa and S, 400 MPa. Determine the maximum weight the bars can support for three cases: Im (i) all three bars are exactly Im long (ii) the outer bars are exactly 1m long but the middle bar is 0.999m (iii the outer bars are exactly Im long but the middle bar is 1.001m Problem 1 Three one-meter-long bars with...
Problem 3 Three steel rods (with E-200 GPa, Cla = 1 1.7x10-6/oC) support a 45 kN load P. Each of the rods AB and CD has a 200 mm cross-sectional area, and rod EF has a 575 mm2 cross sectional area. The horizontal bar BED may be treated as rigid. The distance BE along the horizontal bar from pin B to pin E is 450 mm, and the distance ED along the horizontal bar from pin E to pin D...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...
Question 3 The structure shown in Figure Q(3) is a two-bar truss with spring support. Both bars have modulus of elasticity and cross-sectional area of E- 210 GPa and A -5.0 x10 m. Bar one has a length of 5 m and bar two a length of 10 m. The spring stiffness is k -2000 kN/m. CVE 4303(F) Page 2 of 4 Determine (a) the stiffness matrix for each of the three elements (15 marks) (b) the normal stresses in...