Answer Happy

TABLE 6.4. Coefficients for Determining Maximum Deflections and Maximum Stresses for a Rectangular Plate, under Uniform Loading Po- Clamped on All Four Edges (v = 0.3). 1 1.2 1.4 1.8 2.0 0.0138 0.0188 0.0226 0.0251 0.0267 0.0277 b/a 1.6 22 0.0285 Со C1 0.0513 0.0639 0.0726 0.0780 0.0812 0.0829 0.0833
6.1 A rectangular sandwich hull plate comprises a part of the flat bottom of a ship. Consider this as a rectangular plate under a uniform lateral distributed loading. Po from the water pressure, and clamped along all edges. The steel sandwich faces are 0.125" thick, and the foam-core depth h = 2.5". The panel is 4 ft. wide and 6 ft. long, and the ship draws 14 ft. of water, where seawater weighs 64 lb/ft?. The steel face properties are: E = 30 ~ 10%psi, v=0.3, au ==20,000 psi. What is maximum stress in the sandwich panel? What is the maximum deflection? Use Table 6.4.