Problems 559
Fig. P.19.6
P.19.7 Arectangularsectionthin-walledbeamoflengthLandbreadth3b,depthb,andwallthicknesstisbuiltin
atoneend(Fig.P.19.7).Theuppersurfaceofthebeamissubjectedtoapressurewhichvarieslinearlyacrossthe
breadthfromavaluep 0 atedgeABtozeroatedgeCD.Thus,atanygivenvalueofx,thepressureisconstantin
thezdirection.FindtheverticaldeflectionofpointA.
Fig. P.19.7
Ans. p 0 L^2 ( 9 L^2 / 80 Eb^2 + 1609 / 2000 G)/t.