Class_notes_week10

Class_notes_week10 - fl HQPSAS I 6.45.Two 20 x 450—mm...

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Unformatted text preview: fl; HQPSAS I 6.45 .Two 20 x 450—mm steal plétcs are bbhtsd t0 four L15; x 152_>< ' 19.0 an‘gles-tdform a beam with the cgoss station shown, The belts hava 21 22—11311 diameter and are spiced iongimdipallg every 125 mvanowing that the allowablc’avcraga shearing siressi’n the boEts-is 90 MPaa dctfimfine £116 fargest pénnissible-vérfical shéar in the bcaml (GE-315:1} I" = 1896'X 106 1111114) ‘41. 8‘35 Knowing that a given vartical shear V causes a maximum shear- ; stress 'of 10 ksi in the hat-shaped extrusion shown, determine {ha L‘I‘espending shearing strsss at (a) point a, (19) point 19. 1111. ‘ 14in. \ lin. Fig. P635 6111 The vertical shear is 25 kN in a beam having the emsS Seer: shown. Knowing that d = 50 mm, determine the shearing stress a; (a) min?“ _ a“: (5)) point I). 8 mm 120 mm , 1"" Zak??? mm»’x*‘“7r4 811m NA.» mwmwwu ;. 45 35:5 m i f ’§ gawk ‘vamgguaw. d-éwmm w $133,? , f, fix 5 1512.5. 323§E§§ , _, E , w , ,r . g , _ k _, ._ a? q m .3 2,. a w N 4151531132: V, g. ‘ my 7,1 ihraugh 35.3?- For the given state Of stress, determine {he normal and shearing stresses exerted on the oblique face of the shaded triangular element Showm Use a method of analysis based on the equilibrium of {has element, as was done in the derivations of Sec. 7.2. t 45 M Pa Lil“ 27 MPa 18 Ml’a ——-u--— Fig. 97.1 3.33“ w i , :2» game)“ , “via 4; x. w& “a: ...
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