- A Plastic Beam Has A Cross Section With Dimensions Of A 1 0 In B 3 5 In D 2 In And T 0 3 In The Centroi 1 (61.89 KiB) Viewed 39 times
PROBLEMS.
= A plastic beam has a cross section with dimensions of a = 1.0 in., b = 3.5 in., d = 2 in., and t = 0.3 in. The centroid is located c = 0.846 in. above the bottom surface of the beam, and the moment of inertia of the shape about the z centroidal axis is Iz = 1.283 in. 4. For a shear force of V = 2400 Ib, what is the maximum shear stress in the beam? y a a 1 (typ.) d b. Answer: Tmax psi
A simply supported wood beam that is 6.9 m long carries a 47 kN concentrated load at B. The cross-sectional dimensions of the beam are b = 130 mm, d = 350 mm, a = 65 mm, and c = 45 mm. Section a-a is located at x = 1.2 m from B. (a) At section a-a, determine the magnitude of the shear stress in the beam at point H. (b) At section a-a, determine the magnitude of the shear stress in the beam at point K. (c) Determine the maximum horizontal shear stress that occurs in the beam at any location within the entire span. (d) Determine the maximum tensile bending stress that occurs in the beam at any location within the entire length. ( H K b Answer: (a) THE i kPa (b) TK = i kPa (c) Tmax= i kPa (d) Omax i MPa